Ex-Iowa State Sen. Kent Sorenson defected from Michele Bachmann's campaign before the 2012 Iowa caucuses. In a 2014 plea deal, he admitted that he lied about payments from the Ron Paul campaign.
Republican vice presidential candidate, Rep. Paul Ryan waves with his family Wednesday at the GOP convention in Tampa. Also on stage: his daughter Liza, sons Charlie and Sam Ryan, wife Janna and mother Elizabeth.
Win McNamee/Getty Images
Republican presidential hopeful Ron Paul speaks in this February file photo during an event celebrating Filipino veterans at the Leatherneck Club in Las Vegas, Nevada.
Stan Honda /AFP/Getty Images