Former Texas Gov. Rick Perry addresses the Rick Scott's Economic Growth Summit in Lake Buena Vista, Fla., on Tuesday. Perry announces his 2016 run for the Republican presidential nomination today. Phelan M. Ebenhack/AP hide caption

itoggle caption Phelan M. Ebenhack/AP

Texas Gov. Rick Perry speaks to local party activists on July 19, in Algona, Iowa. Though his 2012 presidential bid crashed, Perry is now drawing mention as a 2016 contender. Charlie Neibergall/AP hide caption

itoggle caption Charlie Neibergall/AP

Speaking about the need for congressional action on immigration, President Obama told a crowd at the Paramount Theatre in Austin, Texas, on Thursday that he would "love it if the Republicans did stuff too." Jack Plunkett/AP hide caption

itoggle caption Jack Plunkett/AP

Gov. Rick Perry gives a speech during the Texas GOP Convention in Fort Worth on Thursday. In his address, the longest-serving governor in the state's history focused more on the future and national issues than his political legacy at home. Rex C. Curry/AP hide caption

itoggle caption Rex C. Curry/AP

Texas Gov. Rick Perry is the latest state executive to say no to an expansion of Medicaid. Win McNamee/Getty Images hide caption

itoggle caption Win McNamee/Getty Images

Texas Gov. Rick Perry attends the Westside Conservative Club breakfast Wednesday in Urbandale, Iowa. Eric Gay/Associated Press hide caption

itoggle caption Eric Gay/Associated Press