* Tradition is to name running-mate right before convention

* Some see advantage in going early

* Potential vice president list closely guarded secret

By Steve Holland

WASHINGTON, June 1 (Reuters) - Senator John McCain waited until just before the 2008 Republican convention to name his vice presidential pick, sticking to a timing tradition thought to pump up party activists before the big push to Election Day.

This year, there is at least a small chance that Republican Mitt Romney might break with tradition and name his vice presidential choice earlier in the summer, according to people advising the campaign.

Romney and a small circle of confidants are working quietly on a list of high-profile Republicans being considered for the No. 2 position. The confidants include his wife, Ann, long-time adviser Beth Myers and campaign manager Matt Rhoades.

Outside advisers to the Romney campaign, who spoke on condition of anonymity, say he has the option of announcing his choice well before the Republican convention where Romney will be nominated, in Tampa in late August.

The tradition is to announce the No. 2 around the time of the convention to inspire grassroots activists and seek maximum publicity for the final two-month push to the Nov. 6 election.

But in this case, the Romney team has discussed whether to announce the pick a few weeks earlier to generate buzz for his campaign during August and help raise campaign funds.

It is far from clear, according to the outside advisers, on whether this route will be taken. But many Republicans see an advantage in going early.

"You double your ability to campaign, you double your ability to raise money," said one Republican official. "You get a longer media halo," said another.

Romney's list is a closely guarded secret, but speculation has centered on a host of Republican leaders including Ohio Senator Rob Portman, Florida Senator Marco Rubio and New Jersey Governor Chris Christie.

Over the coming weeks, those on the list will undergo a background investigation, turning over financial records and any other documents to lawyers hired by the campaign to provide as full a picture as possible of their lives.


THE VETTING WINDOW

Chris Lehane, a Democratic strategist who was a senior adviser to Al Gore's 2000 presidential campaign, said the probing is extensive because the vice presidential choice is the first high-profile decision the candidate makes and it must be done correctly to show Americans the candidate can be trusted.

"It was everything you could imagine, making available your tax returns over X number of years, documents on everything you owned, anything that could prove embarrassing," said Lehane.

Gore started out with about 20 names. Then the list was cut to 10 and then down to five and the rigor of the vetting became more serious. He eventually chose Senator Joe Lieberman, a moderate Democrat who later became an independent and was a top choice for McCain in 2008.

"A lot of these folks didn't get through the initial vet - not necessarily because of anything scandalous. You start to look at votes, at positions. At the end of the day you end up with a limited number of folks," said Lehane.

Once the vetting is complete, only a handful of names are usually left, leaving the candidate with a choice of which direction to go in.

"At that point it's a decision for the candidate for his comfort level, confidence in the person and maybe political considerations," said a Republican official involved in past vetting procedures.

Romney could try to appeal to Hispanics, for example, by picking the Cuban-American Rubio, or he could try to improve his chances in the swing state of Ohio by choosing Portman. Many other names offer similar scenarios.

Romney's campaign says his main qualifications are for someone who could take over as president should anything happen to him, and someone with whom he has a high level of comfort.

Most Republican analysts expect him to pick a relatively safe choice to avoid a repeat of McCain's 2008 pick of former Alaska Governor Sarah Palin, who enlivened the Republican conservative base but was seen as not up to the job of vice president.

(For complete coverage of the U.S. presidential campaign please click on ) (Editing by Mary Milliken and Vicki Allen)

Here are some politicians who have denied interest in the VP slot:
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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."