Five major potential Senate candidates

Five major potential Senate candidates
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Some of most competitive Senate races in the country hinge on potential candidates who, for now, are still on the sidelines.

Some of the possible candidates are expected to enter their race but are biding their time. Others are less likely to jump in but could shake up the field if they do.

Here are five states worth watching for a potential candidate to upend a Senate race.

Tennessee

Sen. Bob CorkerRobert (Bob) Phillips CorkerTax Foundation: Senate reform bill would cost 6B GOP senators raise concerns over tax plan Dem House candidate apologizes for saying it 'shouldn't take brain cancer' for McCain to show courage MORE’s (R-Tenn.) retirement, announced Tuesday, opens up the floodgates in Tennessee like only an unexpected vacancy can.

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Rep. Marsha BlackburnMarsha BlackburnTrump's Twitter lockout raises safeguard concerns Anti-pyramid scheme legislation is necessary to protect consumers from fraud Former Tennessee rep enters race for Corker's Senate seat MORE (R-Tenn.) is considered an early favorite to jump in. She’s already announced she’ll take a look at a bid. Blackburn had been the top name floated by the pro-Trump forces looking for a primary challenge to Corker, but most Republicans were skeptical she would run unless Corker retired.

Right now, conservative activist Andy Ogles is the only significant candidate in the primary. But that’s likely to change with an entry by either Blackburn or two other Republicans who have been considering bids, state Sen. Mark Green and former state Rep. Joe Carr.

Green has had a tumultuous few months, ending his bid for governor to accept Trump’s appointment as Army secretary before eventually withdrawing over his controversial comments about gay rights. And Carr ran an unsuccessful primary against Sen. Lamar AlexanderAndrew (Lamar) Lamar AlexanderObamaCare becomes political weapon for Democrats Senate passes resolution requiring mandatory sexual harassment training Sen. Warren sold out the DNC MORE (R-Tenn.) in 2014 that was still closer than expected.

Arizona

President Trump has made it clear that he wants a primary challenger for Sen. Jeff FlakeJeffrey (Jeff) Lane FlakeGOP rushes to cut ties to Moore Flake on Moore defenders: 'This cannot be who we are' GOP senators raise concerns over tax plan MORE (R-Ariz.), a frequent critic of the president. And his backers have responded in kind — GOP mega-donor and Trump supporter Robert Mercer donated $300,000 to a super PAC backing former Republican state Sen. Kelli Ward’s primary challenge, while Trump allies joined Ward’s campaign in August.

Trump has tweeted encouraging words about Ward’s challenge, but he’s stopped short of endorsing her. And he and allies have continued to speak with other potential primary candidates, including some seen as better general election candidates than Ward.

The talk centers mostly on Jeff DeWit, the Arizona state treasurer and former Trump campaign chief operating officer, and Robert Graham, the former Arizona GOP chairman. Both men, as well as Ward, met with the White House over the summer. Since many state Republicans are skeptical that the ultra-conservative Ward can win in a general election, either man could have a chance at supplanting her as the leading GOP alternative to Flake.

But Ward remains undeterred, particularly as public head-to-head polling shows her leading Flake in a primary by a healthy margin. It’s unclear whether either DeWit or Graham will decide to run, or how a bid could shape the race. But as conservatives continue to call for Flake’s ouster, this race could continue to heat up.

Michigan

The Wolverine State is home to two very different potential Republican candidates.

Detroit singer Kid Rock, whose real name is Robert Ritchie, has captivated the political world with his repeated flirtations with a Senate bid against Sen. Debbie StabenowDeborah (Debbie) Ann StabenowSupreme Court weighs Congress's power to dismiss lawsuits We must fund community health centers now Overnight Energy: Perry takes heat for sexual assault comments | Clovis withdraws nomination for USDA post | Battle lines drawn on Arctic refuge drilling | Energy regulator back to full strength MORE (D-Mich.).

While Ritchie hasn’t announced whether he will actually run, he’s selling shirts adorned with his campaign logo. He has also peppered his recent tour with political statements and diatribes, injecting himself into the political discussion.

While many Republicans believe Ritchie would be a strong candidate thanks to his notoriety, they doubt that he’ll follow through.

That’s not the case with Rep. Fred Upton, the longtime Michigan Republican who has begun sending signals about a potential bid. A source close to Upton told The Hill he’s still considering a bid. It’s one that Michigan Republicans are taking far more seriously than Ritchie’s flirtations with the race.

Upton has been a decades-long fixture of Michigan Republican politics, once serving as the chairman of the House Energy Committee. A likely bid would make him the clear front-runner to win the Republican primary — the remaining candidates have only a sliver of the name recognition and resources that he does. Upton is also believed to have the best shot of beating Stabenow in the general election.

Florida

Republicans are salivating at the chance to knock off Sen. Bill NelsonClarence (Bill) William NelsonOvernight Tech: Senate panel subpoenaed ex-Yahoo chief | Twitter gives all users 280 characters | FBI can't access Texas shooter's phone | EU wants tax answers from Apple Overnight Cybersecurity: What we learned from Carter Page's House Intel testimony | House to mark up foreign intel reform law | FBI can't access Texas shooter's phone | Sessions to testify at hearing amid Russia scrutiny Former Yahoo CEO subpoenaed to appear before Congress MORE (D) in Florida, encouraged after President Trump narrowly won the state in 2016. But no big names have taken the plunge yet for one reason — Republican Gov. Rick Scott.

Scott is far and away the favorite in the Republican primary. His personal wealth means he can jump-start his campaign by self-funding, his name identification is through the roof after two terms as governor, and he’s won two tough statewide races. Maybe most important of all, Trump has publicly called on him to run.

That’s not to say Scott would sail through the general election. His ongoing response to the devastation of Hurricane Irma provides both opportunities to show his leadership and potential risks, especially in his government’s handling of multiple deaths at a nursing home during the storm. Scott’s close political ties to Trump could also prove to be a mixed bag in a purple state.

Scott would immediately enter the race as the strongest Republican candidate, so he can take his time.

Mississippi

If nothing changes, Mississippi Republican Sen. Roger WickerRoger Frederick WickerArmed Services chairman: Pentagon didn't heed warnings before fatal collisions Navy report: Deadly ship collisions preventable, stemmed from 'multiple failures' Bannon's charge against GOP can undercut Trump himself MORE will have an easy reelection in the deep-red state.

But as former Trump chief strategist Stephen Bannon begins to agitate for more primary challenges from the right to incumbent Republicans, Wicker could find his race changing rapidly.

Bannon’s orbit is chattering about the prospect of backing a primary challenge by Chris McDaniel, the state senator who fell just short of toppling Republican Sen. Thad CochranWilliam (Thad) Thad CochranWhite House requests B for missile defense to counter North Korea Senate narrowly passes 2018 budget, paving way for tax reform Live coverage: The Senate's 2018 budget 'vote-a-rama' MORE in a 2014 runoff. Bannon has met with McDaniel, who attended a Bannon-headlined rally in Alabama on Monday night ahead of the state’s Republican Senate primary runoff.

McDaniel’s last primary race featured scorched-earth tactics as the party establishment fought the Tea Party. McDaniel later refused to concede the race to Cochran, alleging that illegal votes were cast in the race.

McDaniel already had success in 2014 framing his bid as a fight with the establishment. If Bannon and his allies jump on board to back him, Wicker’s path to reelection could become a lot more complicated.