WASHINGTON -- Rep. Paul Ryan (R-Wis.) quickly became the most popular politician amongst Republicans in the state this week after Mitt Romney tapped him to be his vice presidential running mate. And in a last-minute effort to appeal to voters ahead of Tuesday's primary election, Wisconsin's Republican U.S. Senate candidates all rushed to tie themselves to Ryan.

On Sunday night, Tommy Thompson's campaign sent an email to supporters arguing that he is the person who will best help Republicans win Wisconsin in the November presidential election.

"The road to capturing the White House and the US Senate runs through Wisconsin," wrote Darrin Schmitz, Thompson's campaign adviser. "And a Romney, Ryan and Thompson ticket is the strongest team possible to deliver this critical victory for Wisconsin and America."

His campaign has been touting comments by Ryan at a rally in Waukesha on Sunday, when he specifically gave a shout-out to Thompson -- a fact the campaign reminded supporters of in a Monday night email. Ryan has not endorsed in the primary.

Ryan praised "what we pioneered here in Wisconsin, Tommy Thompson, welfare reform, getting people off of welfare and back to working and lives of dignity and personal responsibility, on to a life of hitting their potential" -- and criticized President Barack Obama for putting in place "more regulations."

Thompson, the former governor of Wisconsin and former Health and Human Services Secretary under President George W. Bush, was, for awhile, considered the frontrunner in Tuesday's GOP primary because of his long career in public service and popularity in the state.

But in recent weeks, businessman Eric Hovde has surged, thanks in part to his ability to use his own personal fortune to make up for the name recognition he initially lacked.

Former Rep. Mark Neumann -- who has the support of conservatives like Sen. Jim DeMint (R-S.C.) and the Club for Growth -- is also close behind, essentially making it a three-way contest. He, like Hovde, has rushed in to try to capture some of the voters who worry that Thompson is too moderate. Wisconsin Assembly Speaker Jeff Fitzgerald, meanwhile, has lagged in the polls.

The winner will face Rep. Tammy Baldwin (D-Wis.) in the November election.

Both Thompson and Neumann also released robocalls name-dropping Ryan, as noted by Shaun Dakin, the founder and CEO of StopPoliticalCalls.org.

Former Wisconsin lieutenant governor Margaret Farrow robocalled for Thompson, saying, "Paul Ryan's selection as Mitt Romney's running mate is exciting news. We must enhance the Romney-Ryan ticket with the strongest possible U.S. Senate candidate who will add to the momentum, not take from it. Tommy Thompson is the only candidate who will not only win the Senate seat, but will also help pull in votes for Mitt Romney and Paul Ryan."

Neumann recorded his own robocall, telling voters, "I'm calling to ask for your support in our primary election on Tuesday. I also want to congratulate Paul Ryan on his vice presidential nomination. I've known Paul for 15 years, since I served in Congress back '90s, and we worked together balancing the federal budget by cutting wasteful spending. Paul is going to make a great vice president."

Hovde did not have a robocall, but his press secretary, Sean Lansing, told The Huffington Post Monday that the campaign planned a get-out-the-vote call with supporters for later that day that would congratulate Ryan while pointing out the similarities between his and Hovde's vision and plan.

"Eric believes Congressman Ryan was an outstanding pick for VP," said Lansing. "Congressman Ryan and Eric share the same priorities -- deficit reduction, a balanced budget and tax reform, and we need leaders in Washington who will tackle these issues and make the tough decisions that are needed to put America back on track."

Turnout is expected to be low -- 20 percent -- on Tuesday, according to the Milwaukee Journal Sentinel, which could mean a tight contest.

Also on HuffPost:

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  • Marco Rubio

    "Throughout his life, Mitt Romney has made great decisions, and choosing Paul Ryan as his running mate is a truly inspired choice. I got to know Paul during my Senate campaign when he endorsed me early on when I was still considered a long shot. Paul Ryan is a courageous reformer who understands our nation's challenges, has proposed bold policy solutions to solve them, and has shown the courage to stand up to President Obama and other Washington politicians trying to tear him down. "The Romney-Ryan ticket is going to win in November because it offers the American people visionary leadership to recapture the free enterprise spirit that has empowered countless Americans to build businesses from scratch and live the American dream. I'm excited about the visionary change a Romney-Ryan team will bring to Washington, and I look forward to campaigning

  • Rob Portman

    <blockquote> "Mitt Romney has made a great choice in Paul Ryan. He is an accomplished public servant and a leading voice on the most pressing issues facing our country. Paul is one of my best friends in Congress and someone I have worked closely with as a former colleague on the House Ways & Means Committee. "Jane and I wish Paul and Janna and their kids the very best. As the Chairman of the Romney campaign in Ohio, I look forward to working with Paul to ensure that the Romney-Ryan ticket carries Ohio and is victorious in November. Most importantly, as a member of the Senate, I look forward to working closely with a Romney-Ryan Administration to restore fiscal sanity and enact pro-growth policies to create jobs."</blockquote>

  • Obama for American Campaign Manager Jim Messina

    <blockquote>"In naming Congressman Paul Ryan, Mitt Romney has chosen a leader of the House Republicans who shares his commitment to the flawed theory that new budget-busting tax cuts for the wealthy, while placing greater burdens on the middle class and seniors, will somehow deliver a stronger economy. The architect of the radical Republican House budget, Ryan, like Romney, proposed an additional $250,000 tax cut for millionaires, and deep cuts in education from Head Start to college aid. His plan also would end Medicare as we know it by turning it into a voucher system, shifting thousands of dollars in health care costs to seniors. As a member of Congress, Ryan rubber-stamped the reckless Bush economic policies that exploded our deficit and crashed our economy. Now the Romney-Ryan ticket would take us back by repeating the same, catastrophic mistakes."</blockquote>

  • Michelle Malkin

  • Michael Moore

  • Brad Woodhouse

  • Rachel Maddow MSNBC

  • mike murphy

  • Michael Steele

  • Larry Sabato

  • davidfrum

  • Charles M. Blow

  • Robert Reich

  • Nilay Patel

  • Mark Harris

  • Progressive Change Campaign Committee

    The Progressive Change Campaign Committee issued the following statement: <blockquote>"Paul Ryan is a right-wing extremist who wants to end Medicare. This is a major unforced error by Mitt Romney. It gives President Obama and Democrats a chance to draw a clear contrast in 2012 by promising not to cut one penny from Medicare or Social Security benefits. If Democrats win in a landslide, this was the game changer." -- Adam Green, co-founder, Progressive Change Campaign Committee, a 1 million member grassroots organization</blockquote>

  • Laura Ingraham

  • John Kasich

  • Ari Fleischer

  • Susan B. Anthony List

    The national pro-life organization released the following statement: <blockquote>"By selecting Congressman Ryan as his vice presidential running mate, Governor Romney demonstrates his commitment to protecting American women and unborn children," said Marjorie Dannenfelser, president of SBA List. "A longtime pro-life advocate and a strong fiscal conservative, Congressman Ryan has insisted that there can be no 'truce' when it comes to advancing the rights of the unborn and achieving fiscal responsibility. He has a pristine pro-life voting record and will be an asset to Governor Romney's campaign. "Pro-life voters are a key demographic and help secure victory in critical elections," continued Dannenfelser. "The addition of a second strong pro-life leader to the ticket energizes the pro-life base - we are thrilled with this pick."</blockquote>

  • GOProud

    <blockquote>"The selection of Paul Ryan is a bold and inspired pick," said Jimmy LaSalvia, Executive Director of GOProud. "Paul Ryan has been the architect of policies that would benefit all Americans, especially gay Americans." "Paul Ryan is one of the few political leaders anywhere in the country willing to tell the American people the truth about the unprecedented budget crisis we are facing, and - more importantly - willing to put forward bold plans to put this country back on the road to fiscal solvency," continued LaSalvia.</blockquote>

  • Log Cabin Republicans

    <blockquote>"Congressman Paul Ryan is a strong choice for vice president, and his addition to the GOP ticket will help Republican candidates up and down the ballot," said R. Clarke Cooper, Log Cabin Republicans Executive Director. "As chairman of the House Budget Committee and author of the Republican "path to prosperity" that provided the blueprint for serious spending cuts in this Congress, nobody is more qualified to articulate a conservative economic vision to restore the American economy and stimulate job creation. </blockquote>

  • Sen. John Cornyn (R-Texas)

  • Jason Chaffetz

  • Center For American Progress President Neera Tanden

    <blockquote>"Just like Sen. John McCain's choice of Sarah Palin and George H.W. Bush's selection of Dan Quayle, Mitt Romney has been cowed by the right wing into choosing an extreme vice presidential nominee who will alienate moderate voters. It's now clearer than ever that as president, Mitt Romney would end Medicare as we know it, and will raise taxes on middle class families by more than $2,000in order to slash taxes on the wealthiest Americans. While there is a lot that can be said about Paul Ryan's extreme views, more important is what this choice says about Mitt Romney: that he is unwilling or unable to stand up to the far-right of his party and select a vice-presidential candidate that is both able to be president on day one and capable of governing by reaching across the aisle."</blockquote>

  • SEIU President Mary Kay Henry

    <blockquote>"If there were ever any doubt that Mitt Romney is not on the side of working people, today's choice of Rep. Paul Ryan as a running mate makes it crystal clear. With this choice, Romney has shown the American people that he believes Rep. Ryan's extremist, irresponsible and anti-worker agenda is what's right for our country. "Rep. Ryan has made a name for himself by fighting in the halls of Congress for tax giveaways for the wealthy and big corporations while proposing to gut vital services like Medicare and education, and eliminating any sense of retirement security for working families. His no-holds barred record of attacking seniors, children, and working men and women is frightening for the 99 percent of Americans who are not rich -- but for Mitt Romney it was a calling card to choose him as a running mate."

  • NARAL Pro-Choice America President Nancy Keenan

    <blockquote>"Mitt Romney's choice of Rep. Ryan as his running mate reminds us of why elections matter when it comes to our ability to make personal and private medical decisions," Keenan continued. "The outcome of the 2012 presidential election very well could determine whether abortion remains legal and accessible for the next generation of American women. Romney has pledged that taking away women's rights will be a priority for him and his choice of Ryan amplifies that promise to the extreme anti-choice backers of this ticket. My organization's priority is to make sure President Obama remains in the White House."</blockquote>

  • Kelly Ayotte

  • Herman Cain

  • Rick Perry

  • Tommy Thompson

  • Pete Hoekstra

  • Steve King

  • Eric Cantor

  • Dana Rohrabacher

  • Kenny Marchant

  • Gregg Harper

  • Rick Santorum

  • Rep. Kathy Hochul

    <blockquote>"Americans deserve new ideas for how we can reduce the debt and protect our seniors and the middle class. Just one year ago, Western New York voters rejected the Ryan-Collins policies that would end Medicare as we know it and hurt middle class families while giving more tax cuts to the rich. Our country needs to move forward, not re-hash failed ideas. Given Chris Collins' ongoing support for tax cuts for the rich that add nearly $1 trillion to the deficit and his willingness to send his business to China to line his pockets, it is clear my opponent is going to continue to pursue policies and priorities that have already been rejected."</blockquote>

  • Sen. Lisa Murkowski

  • Claire McCaskill

  • Jim DeMint

  • Chris Van Hollen

  • Rep. Mary Bono Mack

  • Sam Brownback

  • John Shimkus

  • Rep. Trent Franks

  • Frank Pallone

  • Michele Bachmann

  • Rob Zerban

    <blockquote>"Now that Paul Ryan's personal ambition has clearly trumped his interest in the First District, I have no doubt he'll find himself out of a job come November. Once Wisconsinites and voters across our country learn the truth about Ryan's radical plot to end Medicare as we know it, de-fund women's health care, and preserve tax breaks for millionaires, they'll vote against him not just once, but twice. In the coming weeks, our campaign will work with President Barack Obama and Vice President Joe Biden to continue getting the word out on Ryan's indefensible record, and building momentum to ensure victory on Election Day."</blockquote>

  • Scott Walker

    <blockquote>"Governor Mitt Romney made a bold and reform-minded selection in Congressman Paul Ryan of Wisconsin. This election has to be about who is going to look out for the next generation. America needs a comeback team to turn around the economy and to turn around the fiscal status of our country. Romney and Ryan have the ideas and the experience needed to take on these core issues. This is a great day for Wisconsin and an even greater day for America."</blockquote>