CINCINNATI — President Barack Obama and his Democratic allies aren't waiting for Republican Mitt Romney to reveal his vice presidential choice. They're already trying to scuff up those considered by political insiders to be most likely to join the GOP ticket.

The president's campaign started swinging at the potential Republican running mates this week while urging home-state Democrats to chime in about the shortcomings that – as emails to donors and supporters put it – "Americans need to know." The pre-emptive strikes are an effort to define a possible No. 2 in a negative light and reflect a sense that time is precious to sway opinion in a stubbornly close presidential race dashing quickly toward November.

Tim Pawlenty? The former Minnesota governor is a fee-raiser whose record "is painful for the middle-class families who lived under his leadership," the Obama campaign argues.

Rob Portman? The Ohio senator is "one of the architects of the top-down Bush budget" that the Obama team blames for "crashing our economy."

Marco Rubio? The rookie Florida senator has "led the way on almost every extreme position Mitt Romney has embraced," according to the missive that seeks examples of "the good, the bad and ugly" of Rubio.

Chris Christie? There's "no lack of material to work with" about the pugnacious New Jersey governor.

Bobby Jindal? The Louisiana governor and former congressman tried to harm Social Security and Medicare and "had the same issues with secrecy and lack of transparency as Mitt Romney."

Those views are far from how Republicans regard the group.

As many in the GOP see it, Pawlenty is extolled for his blue-collar appeal and budget restraint during eight years as governor; Portman is praised for a vast portfolio of experience and as someone who could help deliver a critical swing state; Rubio is a rising star who could help attract Hispanic voters; Christie is willing to take on entrenched interests and big problems no matter whom he offends; and Jindal is a diverse face who saw his state through a major oil spill and has built a reputation as a budget and education reformer.

Romney's campaign criticized Obama for seeking the critiques. They are little more than "negative smear campaigns against the possible GOP vice presidential nominees," Ohio-based spokesman Chris Maloney said.

It's not just the Obama operation that's trying to tar the Republicans. Local Democratic officials in contested states aren't letting visits by the would-be vice presidents go unchecked. In conference calls, they try to draw attention to what they say are the Republicans' flaws, then quickly deliver biting assessments when one of them campaigns in a battleground state. Independent groups sympathetic to Obama are piling on as well.

American Bridge 21st Century, a Washington-based super PAC, has already dumped a combined 1,651 unflattering pages of so-called opposition research on Pawlenty, Portman and Rubio as well as Jindal and Wisconsin Rep. Paul Ryan. The five electronic briefing books, including two released Wednesday, rake over the Republicans' voting records, proposals, public statements and slipups. The rundowns are so detailed that a politician's taste for expensive wine is even noted in one of the books.

American Bridge President Rodell Mollineau said the group started months ago compiling the information – much of it's drawn from media reports, public records and speeches – and decided against waiting until the vice presidential pick becomes known to trickle out the juiciest bits.

"You don't want to start too soon, but you don't want to be in a situation where there's 80 days until the election and everything is being jammed in so much that things are being lost," Mollineau said.

The findings are likely to buttress criticism from top Democrats, feed into TV ads and show up as part of fall campaign mailings. The group also has video trackers in key areas eager to capture possible miscues or shifting positions.

The Obama campaign dispatches haven't gone unnoticed on the right.

Natalie Baur, a confidante of Portman, went so far as to issue a rebuttal to fellow supporters defending Portman as a problem-solver. The message called the Obama push for feedback on him a "desperate" move and a sign that "the president's friends are more interested in playing political games than working together to create jobs, fix the economy and pass a budget."

Romney has said little about whom he favors or when the choice will come, although it's expected well before the Aug. 27 start of the Republican National Convention in Tampa, Fla.

So far, Vice President Joe Biden has had the No. 2 space all to himself, which has given the Obama campaign a second high-level voice to tour the country, raise money and hammer their opposition. Obama's aides deny he has a preference, but admit they're watching closely for Romney's decision.

"Any way you cut it, whomever they pick, we'd much rather have Vice President Biden on our side, campaigning across the country, in the debates, out there standing up for the president, than any of the motley crew that Mitt Romney is choosing between," Obama campaign spokesman Jen Psaki said Wednesday.

Ann Romney, the candidate's wife who just returned from watching her horse compete at the Olympic Games in London, added to the suspense Thursday with an email telling backers "I can't wait" to help introduce "the other half of America's Comeback Team."

___

Bakst reported from St. Paul, Minn. Associated Press writers Brendan Farrington in Tallahassee, Fla., Mark S. Smith and Melinda Deslatte in Baton Rouge, La., contributed to this report.

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  • Bob McDonnell

    <strong>Who:</strong> Virginia Gov. Bob McDonnell (R) <strong>The Buzz:</strong> McDonnell <a href="http://www.huffingtonpost.com/2012/01/20/bob-mcdonnell-mitt-romney-endorsement_n_1218559.html" target="_hplink">endorsed Mitt Romney</a>, the only candidate besides Ron Paul to make it on his state's ballot, and Romney <a href="http://www.politico.com/news/stories/0711/59933.html#ixzz1TJCfqwQ4" target="_hplink">said last summer </a>that McDonnell would be on "any candidate's short-list" as a VP pick. Rep. Tim Scott (R-S.C.)<a href="http://goosecreek.patch.com/articles/veep-speculation-greets-mcdonnell-in-s-c" target="_hplink"> has already started referring </a>to McDonnell as "Mr. Vice President." <strong>His Response:</strong> McDonnell said on "Meet The Press" in March that he wasn't interested in the position. "I've got the job held by Jefferson and Henry," <a href="http://www.washingtonpost.com/blogs/maryland-politics/post/martin-omalley-touts-bob-mcdonnell-for-vice-president-kind-of/2012/03/11/gIQATP6I5R_blog.html" target="_hplink">he said</a>. "I love being governor of Virginia."

  • Chris Christie

    <strong>Who:</strong> New Jersey Gov. Chris Christie (R) <strong>The Buzz:</strong> Christie <a href="http://www.huffingtonpost.com/2011/09/04/chris-christie-president-2012_n_948401.html" target="_hplink">fielded numerous calls</a> to run in 2012, and is now attracting speculation as a possible VP pick by Mitt Romney, who called Christie, "one of the leading figures in the Republican party." <strong>His Response:</strong> Christie didn't do much to quell the rumors in December when he <a href="http://www.huffingtonpost.com/2011/12/23/chris-christie-vice-president-mitt-romney_n_1167557.html" target="_hplink">addressed them</a> by saying: <blockquote>I don't think you talk about that stuff. I think if you're the nominee you're afraid to talk about that stuff because you don't want to jinx yourself. I don't think [Romney] wants to be presumptuous enough to start talking to somebody about a vice president when he's not yet the nominee.</blockquote>

  • Marco Rubio

    <strong>Who:</strong> Florida Sen. Marco Rubio (R) <strong>The Buzz:</strong> Newt Gingrich <a href="http://www.huffingtonpost.com/2012/01/30/newt-gingrich-marco-rubio_n_1242912.html" target="_hplink">called Rubio</a> an "awfully good" choice, while Mitt Romney named him as an obvious choice for the short-list. As the Huffington Post's Carlos Harrison <a href="http://www.huffingtonpost.com/2012/02/02/marco-rubio-tea-party_n_1249480.html?ref=gingrich-2012" target="_hplink">reported</a>, "He's the posterboy for a demographic coveted by the GOP: a telegenic Tea Party favorite and a Latino. And despite being both young and a freshman among Washington, D.C., power brokers, he exerts outsized influence." <strong>His Response:</strong> Rubio himself <a href="http://abcnews.go.com/blogs/politics/2011/10/i-am-not-going-to-be-the-vp-nominee/" target="_hplink">seems less enthusiastic</a>: <blockquote>When asked at the Washington Ideas Forum at the Newseum in Washington DC, Rubio repeated twice for emphasis, "I am not going to be the Vice Presidential nominee. I am not going to be the Vice Presidential nominee." Asked during the forum if he would turn down an offer if the Republican presidential nominee asks him to, Rubio responded, "Yea, I believe so," adding again, "the answer is gonna be no."</blockquote>

  • Brian Sandoval

    <strong>Who:</strong> Nevada Gov. Brian Sandoval (R) <strong>The Buzz:</strong> Ahead of the Nevada caucus, Sandoval <a href="http://2012.talkingpointsmemo.com/2012/02/could-mitt-romney-pick-up-a-vp-in-nevada.php" target="_hplink">was speculated</a> to be a potential VP pick: <blockquote>Nevada's governor Brian Sandoval has been bandied about as a potential -- if longshot -- veep choice since his election in 2010. On paper, his resume looks solid. He's a young rising star in the party with strong approval ratings and, as a Hispanic Republican, could help a Republican nominee -- and especially Romney -- stop the bleeding with one of the party's weakest general election demographics. </blockquote> While no candidates have floated his name for VP yet, Mitt Romney <a href="http://www.lasvegassun.com/news/2012/jan/26/mitt-romney-mentions-brian-sandoval-cabinet-possib/" target="_hplink">did mention him</a> as a possible Cabinet member. <strong>His Response:</strong> After endorsing Rick Perry last September, Sandoval <a href="http://latino.foxnews.com/latino/politics/2011/09/16/nevada-gov-brian-sandoval-wont-be-rick-perrys-vice-presidential-pick/" target="_hplink">denied that he was looking for a VP nod</a>. "I am absolutely committed to serving out my term," he said.

  • Nikki Haley

    <strong>Who:</strong> South Carolina Gov. Nikki Haley (R) <strong>The Buzz:</strong> Haley's endorsement of Mitt Romney <a href="http://www.huffingtonpost.com/2012/01/22/nikki-haley-romney_n_1221682.html" target="_hplink">didn't do him much good</a> in the state, but her name has still come up as a possible candidate for VP. <strong>Her Response:</strong> "I'd say, 'Thank you, but no,'" <a href="http://abcnews.go.com/Politics/News/south-carolina-gov-nikki-haley-shed-turn-vp/story?id=16050396#.T3nGGCvLx1Z" target="_hplink">Haley told ABC News</a>. "I made a promise to the people of this state. And I think that promise matters. And I intend to keep it."

  • Susana Martinez

    <strong>Who:</strong> New Mexico Gov. Susana Martinez (R) <strong>The Buzz:</strong> Martinez has attracted attention as the first female Hispanic governor, and Mitt Romney <a href="http://latino.foxnews.com/latino/politics/2012/01/23/new-mexico-gov-susana-martinez-says-no-thanks-to-mention-her-as-possible-romney/" target="_hplink">mentioned her</a> as a good possible running mate. <strong>Her Response:</strong> Martinez <a href="http://thehill.com/blogs/blog-briefing-room/news/205571-nm-governor-not-interested-in-vp-spot" target="_hplink">has said</a> she's flattered, but not interested: <blockquote>"She has no interest in serving as vice president and will not be a candidate for the position," Martinez spokesman Scott Darnell said in a statement according to the Santa Fe New Mexican on Friday. </blockquote>

  • Haley Barbour

    <strong>Who:</strong> Former Mississippi Gov. Haley Barbour (R) <strong>The Buzz:</strong> Barbour was considered a promising candidate for the 2012 nomination until he <a href="http://www.huffingtonpost.com/2011/04/25/haley-barbour-2012-presid_n_851969.html" target="_hplink">decided not to run</a> last summer. Mitt Romney has mentioned Barbour as a name <a href="http://www.examiner.com/charleston-democrat-in-charleston-sc/romney-names-possible-vp-candidates" target="_hplink">he'd consider</a> for vice president. <strong>His Response:</strong> Barbour wouldn't turn down the possibility of being VP, but he said he didn't anticipate being asked. "I don't think I'm a good running mate for anybody, but I do think Marco Rubio would be very attractive as would other people," <a href="http://foxnewsinsider.com/2011/11/07/mississippi-gov-haley-barbour-on-whether-he-would-consider-being-a-vp-pick-in-2012/" target="_hplink">he told FOX last November</a>.

  • Mitch Daniels

    <strong>Who:</strong> Indiana Gov. Mitch Daniels (R) <strong>The Buzz:</strong> Daniels hasn't endorsed a candidate yet, but he's considered a potential pick for the VP slot. His book, "Keeping the Republic: Saving America by Trusting Americans," <a href="http://www.realclearpolitics.com/articles/2011/09/19/mitch_daniels_stirs_vp_buzz_with_new_book_111382.html" target="_hplink">added to the hype</a>. <strong>His Response:</strong> Daniels was asked about the possibility <a href="http://www.huffingtonpost.com/2011/09/30/2012-gop-vice-presidential-candidate_n_988558.html" target="_hplink">last fall</a>: <blockquote>"There's no answer to this question," Daniels said when the vice president's job came up while he was promoting his book. He said he'd have to consult his family, which earlier vetoed the idea of him running for president.</blockquote>

  • Jan Brewer

    <strong>Who:</strong> Arizona Gov. Jan Brewer (R) <strong>The Buzz:</strong> Brewer made headlines for a <a href="http://www.huffingtonpost.com/2012/01/30/jan-brewer-pac-obama-fundraiser_n_1241794.html" target="_hplink">confrontation with President Barack Obama</a> at an airport in Phoenix. Does Brewer want another chance to take on the Obama administration? The <a href="http://www.azcentral.com/news/election/azelections/articles/2011/10/16/20111016brewer-vice-president-hopeful.html" target="_hplink">Arizona Republic</a> reports that her name has surfaced as a possible VP candidate. <strong>Her Response:</strong> None so far.

  • Tim Pawlenty

    <strong>Who:</strong> Former Minnesota Gov. Tim Pawlenty (R) <strong>The Buzz:</strong> Pawlenty was a short-lived presidential candidate, quitting in the summer after a third-place finish in the Iowa straw polls. He later endorsed Mitt Romney, who named him as a <a href="http://www.examiner.com/charleston-democrat-in-charleston-sc/romney-names-possible-vp-candidates" target="_hplink">possible VP candidate</a>. <strong>His Response:</strong> Pawlenty <a href="http://www.huffingtonpost.com/2012/02/24/tim-pawlenty-mitt-romney-vice-president_n_1299377.html" target="_hplink">said in an interview</a> that he'd taken himself "off the list" to be considered as Romney's VP.

  • Rob Portman

    <strong>Who:</strong> Sen. Rob Portman (R-Ohio) <strong>The Buzz:</strong> Portman is a supporter of Mitt Romney. In December, his home state's <em>Dayton Daily News</em><a href="http://www.daytondailynews.com/news/politics/portman-still-viable-as-vp-nominee-1301194.html" target="_hplink"> ran an article</a> touting his chances to become VP: <blockquote>His deep resume and absence of political negatives keep him in the discussion as a vice-presidential candidate. "I would be very surprised if the eventual nominee doesn't have Rob on the short list,'' said Tony Fratto, who served as White House press secretary to former President George W. Bush.</blockquote> <strong>His Response:</strong> Portman is noncommittal about being on anyone's presidential ticket. "I truly am not seeking that," he said in an interview with the Dayton Daily News' Washington Bureau.

  • Bobby Jindal

    <strong>Who:</strong> Louisiana Gov. Bobby Jindal (R) <strong>The Buzz:</strong> Jindal, <a href="http://www.huffingtonpost.com/2011/09/12/bobby-jindal-rick-perry-endorsement-2012_n_959162.html" target="_hplink">who endorsed Rick Perry</a>, has seen his star fade <a href="http://www.huffingtonpost.com/2009/02/25/bobby-jindal-response-pan_n_169710.html" target="_hplink">since his widely panned State of the Union response</a> in 2009. But he is still viewed as a potential pick. Florida Gov. Rick Scott (R) <a href="http://miamiherald.typepad.com/nakedpolitics/2011/11/gov-scott-bobby-jindal-would-be-a-great-vp.html" target="_hplink">praised him</a>, saying, "He's well-liked. He's a nice person to deal with. He clearly cares about people. He's willing to make tough choices," Scott said. "So I think he would make a great vice president." <strong>His Response:</strong> "I don't want a job from Governor Perry," Jindal <a href=" http://blog.chron.com/rickperry/2011/09/bobby-jindal-wont-be-rick-perrys-vp-but-says-hes-a-great-neighbor/" target="_hplink">said after endorsing the former candidate</a>. "I want Governor Perry to create millions of jobs for my fellow Americans."

  • John Thune

    <strong>Who:</strong> Sen. Jon Thune (R-S.D.) <strong>The Buzz:</strong> Thune, <a href="http://www.huffingtonpost.com/2011/02/22/john-thune-2012-not-running-for-president_n_826582.html" target="_hplink">once viewed</a> as a potential 2012 candidate himself, has <a href="http://www.huffingtonpost.com/2011/11/23/mitt-romney-john-thune-endorsement_n_1109456.html" target="_hplink">since endorsed Mitt Romney</a>. <strong>His Response:</strong> Thune has said he's not interested in the VP role, but<a href="http://www.kcautv.com/story/16449478/south-dakota-senator-john-thune-not-interested-in-vp-race" target="_hplink"> he wouldn't rule anything out</a>.

  • Kelly Ayotte

    <strong>Who:</strong> Sen. Kelly Ayotte (R-N.H.) <strong>The Buzz:</strong> Ayotte was an early supporter of Mitt Romney. He gave her an endorsement of his own, <a href="http://www.huffingtonpost.com/2011/11/22/mitt-romney-kelly-ayotte_n_1108125.html" target="_hplink">naming her</a> as a possible pick for vice president. <strong>Her Response:</strong> Ayotte said she was "surprised" by Romney's comment, but that "certainly it was an honor to be mentioned." "I am very committed to representing New Hampshire," she <a href="http://www.unionleader.com/article/20111130/NEWS0605/711309959" target="_hplink">told the <em>New Hampshire Union Leader</em></a>. "It is such a privilege to serve New Hampshire in the U.S. Senate."

  • Sam Brownback

    <strong>Who:</strong> Kansas Gov. Sam Brownback (R) <strong>The Buzz:</strong> Brownback endorsed Rick Perry for president, <a href="http://www.kansas.com/2011/09/23/2029027/brownback-endorses-perry-for-president.html" target="_hplink">prompting speculation</a> that he could be looking for a spot as vice president. Brownback also briefly ran for president in 2008. <strong>His Response:</strong> During the last election cycle, Brownback <a href="http://www.huffingtonpost.com/2008/03/13/brownback-would-be-honore_n_91341.html" target="_hplink">said he'd be "honored"</a> to serve as John McCain's vice president. He hasn't yet commented this time around.

  • Allen West

    <strong>Who:</strong> Rep. Allen West (R-Fla.) <strong>The Buzz:</strong> West has been named as a strong contender by a number of his peers, including Herman Cain, <a href="http://livewire.talkingpointsmemo.com/entries/herman-cain-endorses-allen-west-for-vice-presdient" target="_hplink">who called him an "excellent choice"</a>, and Nikki Haley, <a href="http://www.huffingtonpost.com/2012/04/05/nikki-haley-allen-west_n_1405401.html" target="_hplink">who said he would make a "good" pick</a>. <strong>His Response:</strong> "Yes, well, right now, you know, the focus is, of course, being a good congressional representative," <a href="http://www.realclearpolitics.com/video/2012/04/06/allen_west_i_would_say_yes_to_vp_slot_on_gop_ticket.html" target="_hplink">West told CNN's Kyra Phillips</a>. "But if someone were to make that call to me, which I really doubt is ever going to happen, you would have to make sure that it is something that god would ordain for you, and you'd have to talk to your wife, my wife and my two daughters about. But we have always stepped up to the plate to serve our country. And if it's the right fit, then I will do so."