Supporters of Senator Rand Paul, a Republican from Kentucky, not pictured, cheer as he speaks during the Conservative Political Action Conference (CPAC) in National Harbor, Maryland, U.S., on Friday, Feb. 27, 2015.

Supporters of Senator Rand Paul, a Republican from Kentucky, not pictured, cheer as he speaks during the Conservative Political Action Conference (CPAC) in National Harbor, Maryland, U.S., on Friday, Feb. 27, 2015.

Photographer: Andrew Harrer/Bloomberg

Inside CPAC 2015

Conservatives gather in National Harbor, Md., to network and hear from potential presidential candidates.