Sen. Rand Paul, Kentucky Republican, speaks at the Iowa GOP Lincoln Dinner on Friday, May 10, 2013, at the Hotel at Kirkwood Center in Cedar Rapids, Iowa. (AP Photo/Matthew Holst)
**FILE** Sen. Rand Paul, Kentucky Republican, is questioned by reporters in an elevator as he leaves a GOP policy meeting on Capitol Hill in Washington on March 7, 2013. (Associated Press)
**FILE** Sen. Rand Paul, Kentucky Republican, is questioned by reporters in an elevator as he leaves a GOP policy meeting on Capitol Hill in Washington on March 7, 2013. (Associated Press)
Sen. Rand Paul isn't hesitating to test the presidential waters, speaking in Iowa on Friday and in New Hampshire on Monday. (Associated Press)
Sen. Rand Paul isn't hesitating to test the presidential waters, speaking in Iowa on Friday and in New Hampshire on Monday. (Associated Press)
**FILE** Sen. Rand Paul, Kentucky Republican, talks to reporters on Capitol Hill in Washington on March 7, 2013. (Associated Press)
**FILE** Sen. Rand Paul, Kentucky Republican, talks to reporters on Capitol Hill in Washington on March 7, 2013. (Associated Press)
Sen. Rand Paul, Kentucky Republican, said he is still torn on what to do with some of the enemy combatants in the war on terrorism captured overseas the U.S. holds. His father, Ron Paul, advocates closing the Guantanamo Bay prison. (Associated Press)
** FILE ** In this March 7, 2013, file photo, Sen. Rand Paul, Kentucky Republican, talks to reporters on Capitol Hill in Washington. Paul says he is considering a presidential campaign in 2016 but will not make a decision before next year. (AP Photo/Charles Dharapak, File)
