Winning a majority in the U.S. Senate in 2012 was never going to be easy for Republicans. But over the past several months, new obstacles have continued to stack up as a few seemingly locked-up Senate races have become less than sure for the GOP. And given the Democrats' success in recruiting popular candidates to run, the Republicans are working overtime to catch up and turn their own challengers into strong general election contenders. They need to gain four seats to take control of the upper chamber.
"There's been a lot of turbulence for Republicans," the Democratic Senatorial Campaign Committee communications director Matt Canter told Yahoo News, noting the difficulties Republicans have had recruiting candidates.
One major setback occurred when Republican Sen. Olympia Snowe of Maine announced her surprise retirement in February. As one of the least conservative Republicans in the Senate, running in a heavily independent state, Snowe was a virtual shoe-in for re-election. Now her seat is up for grabs.
Currently, Republicans hold 47 seats in the Senate to the Democrats' 51, including Independent Bernie Sanders of Vermont and Independent Democrat Joe Lieberman of Connecticut. Only 10 Republicans are up for re-election this year, compared to 23 Democrats (counting Lieberman and Sanders, who caucus with the party). But Democratic recruiting successes have kept several of the open seats and contested races in play.
On the other side of the spectrum are the tea party candidates, who Democrats argue have hurt the Republicans by waging fierce primary battles--and even winning some of them.
"The impact of the tea party has been felt in almost every single Senate race in the country," Canter of the DSCC said to Yahoo News. "The seeds have been sowed, but I don't think we've seen the full impact yet. … We're going to see a lot more fireworks before the dust settles."
Republicans insist that this year's slate of top tea party candidates are strong general-election contenders. "Primaries are only a problem if the person who is nominated is not the winner in the general election," Brian Walsh, the National Republican Senatorial Committee communications director, told Yahoo News.
Walsh cited North Dakota, Nebraska, Missouri and Montana as states where President Barack Obama's low approval ratings will help the Republican candidates running for the Senate. Both Walsh and Canter named Virginia's race as the one where the presidential contest will have the greatest influence.
A Republican strategist, who wished to remain anonymous when speaking about strategy details, noted to Yahoo News that Republican odds will depend heavily on three key races: Maine, Massachusetts and Nevada.
"We feel best about Nevada," the strategist said of those three contests.
"If we win two out of those three, we can win back a majority," the strategist said. "If we win one, it becomes complicated."
Here are the top Senate races in play this year: