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

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Kentucky's Democratic governor, Steve Beshear, has gotten considerable attention for embracing President Obama's Affordable Care Act and adopting the Common Core educational standards. Roger Alford/AP hide caption

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Senate Minority Leader Mitch McConnell, R-Ky., and his wife Elaine Chao at last summer's Republican National Convention in Tampa. Mike Thelier /UPI /Landov hide caption

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U.S. Senator Mitch McConnell talks as Myanmar pro-democracy leader Aung San Suu Kyi listens during a press conference after their meeting at her home in Yangon, Myanmar on Monday. Khin Maung Win/AP hide caption

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McConnell, left, and House Minority Leader John Boehner at the Capitol in March. Chip Somodevilla/Getty Images North America hide caption

itoggle caption Chip Somodevilla/Getty Images North America