Watch as Sen. Rand Paul of Kentucky announces his bid to run for the 2016 Republican presidential nomination. Paul is the second Republican to officially launch a campaign, after Sen. Ted Cruz of Texas did so in late March.
Watch Live: Rand Paul Announces Presidential Bid
Sen. Rand Paul, R-Ky., looks on at a press conference to discuss "The Compassionate Access, Research Expansion and Respect States (CARERS) Act" March 10, 2015 in Washington, DC. (Photo: Abaca Press/Sipa USA/Newscom)