
Sen. Rand Paul, Kentucky Republican, speaks at the Conservative Political Action Conference at the Gaylord National Hotel at National Harbor, Md., on Thursday, March 14, 2013. (Andrew Harnik/The Washington Times)

Sen. Rand Paul, Kentucky Republican, speaks at the Conservative Political Action Conference at the Gaylord National Hotel at National Harbor, Md., on Thursday, March 14, 2013. (Andrew Harnik/The Washington Times)

Rep. Michele Bachmann, R-Minn., chairwoman of the Tea Party Caucus, listens at left as while Sen. Rand Paul, R-Ky., speaks during a news conference with Tea Party leaders about the IRS targeting Tea Party groups, Thursday, May 16, 2013, on Capitol Hill in Washington. (Associated Press)

Rep. Michele Bachmann, R-Minn., chairwoman of the Tea Party Caucus, listens at left as while Sen. Rand Paul, R-Ky., speaks during a news conference with Tea Party leaders about the IRS targeting Tea Party groups, Thursday, May 16, 2013, on Capitol Hill in Washington. (Associated Press)

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)