Sen. Jeff Flake, Arizona Republican, answers questions from the crowd about immigration reform, gay marriage and other topics on March 28, 2013, during a town-hall-style meeting at Embry-Riddle Aeronautical University in Prescott, Ariz. (Associated Press/The Daily Courier) ** FILE **

Photo by: Matt Hinshaw

Sen. Jeff Flake, Arizona Republican, answers questions from the crowd about immigration reform, gay marriage and other topics on March 28, 2013, during a town-hall-style meeting at Embry-Riddle Aeronautical University in Prescott, Ariz. (Associated Press/The Daily Courier) ** FILE **