Senate Republican leader Mitch McConnell speaks to supporters Saturday at the Tanglewood Farms Restaurant in Franklin, Ky. McConnell faces Tea Party challenger Matt Bevin and several other lesser-known candidates in Tuesday's GOP primary. Timothy D. Easley/AP hide caption

itoggle caption Timothy D. Easley/AP

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

itoggle caption Kim Raff/AP

Dairy cows feed through a fence at an Idaho farm, in this 2009 file photo. Idaho's Gov. C.L. "Butch" Otter enacted a bill Friday that criminalizes the act of secretly filming animal abuse at farms. Charlie Litchfield/AP hide caption

itoggle caption Charlie Litchfield/AP

Clearly, he's as surprised by the allegations as the rest of us. iStockphoto.com hide caption

itoggle caption iStockphoto.com