FILE - This Nov. 4, 2008, file photo shows Rep. Jeff Flake, R-Ariz., with his wife Cheryl Flake, and two of their children Alexis, 17, left, and Austin, 15, encouraging Republicans and supporters of Republican presidential candidate Sen. John McCain, R-Ariz., at an election night rally in Phoenix. Since his first House campaign a dozen years ago, would-be Arizona Sen. Jeff Flake has worked diligently to cast himself as a conservative gadfly, willing to buck GOP leaders and even a Republican president. (AP Photo/Ross D. Franklin, File)