Idaho Republican House candidate Bryan Smith is trying to unseat eight-term GOP Rep. Mike Simpson. The May 20 primary is viewed as a contest of Tea Party vs. establishment. Kim Raff/AP hide caption

The four candidates for Idaho governor (left) at Wednesday's GOP gubernatorial debate. The debate was held at Idaho Public Television studios. YouTube hide caption

Republicans Shane Osborn (right) and Ben Sasse are slugging it out for the GOP Senate nomination in Nebraska, which holds its primary Tuesday. Nati Harnik/AP hide caption

Rep. Coya Knutson (D-Minn.), is shown shopping in a supermarket in 1955 following her demand to know why her fellow housewives remain saddled with high grocery bills while farm income continues to drop. Maurice Johnson/Bettmann/Corbis hide caption

Oregon Republican Senate candidate Monica Wehby, right, talks to supporter Marvin Hausman in Lake Oswego, Ore. Wehby has drawn national attention and money in her effort to win her party's nomination. Jonathan J. Cooper/AP hide caption

Republican Rep. Michael Grimm of Staten Island arrives for a news conference outside a courthouse in New York on Monday after being indicted on federal charges following a two-year investigation. Seth Wenig/AP hide caption

Republican Sen. Rand Paul of Kentucky testified last year in favor of revamping the nation's mandatory federal minimum sentencing laws. Manuel Balce Ceneta/AP hide caption

President Obama signs the Fair Sentencing Act in 2010, as Attorney General Eric Holder and a bipartisan group of senators look on. Pablo Martinez Monsivais/AP hide caption

Former New York Mayor Michael Bloomberg announced Wednesday that he plans to spend $50 million this year on field operations to support candidates in favor of gun safety laws. Seth Wenig/AP hide caption

Colorado Republican Congressman Cory Gardner after he announced his candidacy for U.S. Senate in March. He's challenging incumbent Democratic Sen. Mark Udall. Chris Schneider/AP hide caption

Rep. Jim Moran, D-Va., joins other members of the House of Representatives at a closed-door intelligence briefing on Syria in September. J. Scott Applewhite/AP hide caption

Senate Intelligence Committee Chairwoman Dianne Feinstein, D-Calif., speaks after a closed-door meeting Thursday on Capitol Hill. The panel voted to approve declassifying part of a report on Bush-era interrogations of terrorism suspects. Molly Riley/AP hide caption

President Obama participates in a 2012 town hall hosted by Univision with news anchors Jorge Ramos and Maria Elena Salinas. A conservative media watchdog group says the Spanish-speaking network is biased in favor of Obama and liberals. Carolyn Kaster/AP hide caption

Florida Gov. Rick Scott, who led state opposition to the federal Affordable Care Act, met with reporters in Tallahassee after the U.S. Supreme Court upheld the bulk of the law. Scott, a Republican, has made his opposition central to his re-election campaign. Steve Cannon/AP hide caption

U.S. Rep. Colleen Hanabusa of Hawaii says the way her competitor's allies have made age an issue in her run for U.S. Senate is insulting to voters. Oskar Garcia/AP hide caption

Democratic National Committee Chairwoman Debbie Wasserman Schultz speaks to party members during their meeting last summer in Scottsdale, Ariz. Ross D. Franklin/AP hide caption

Immigration supporters gather during a rally for citizenship on Capitol Hill last year. Manuel Balce Ceneta/AP hide caption

Demonstrators protest the Obama administration's deportation policies in Phoenix last year. Ross D. Franklin/AP hide caption

In remarks last year to the American Bar Association, Attorney General Eric Holder addressed what he characterized as harsh mandatory minimum prison sentences for drug crimes. Eric Risberg/AP hide caption

President Obama speaks about raising the minimum wage to $10.10 per hour during an event last week in New Britain, Conn. The effort to raise wages is seen as part of his State of the Union promise of a "year of action." Stephan Savoia/AP hide caption