U.S. President Barack Obama on Thursday launched a Florida trip (focused mainly on job creation) with a tour of an Air Force base assisting with the relief mission to Haiti. Obama and Vice President Joseph Biden met with crew members at a maintenance hangar at MacDill Air Force Base, the headquarters of U.S. Central Command. The crew works on aerial tankers that refuel other airplanes being used on aid missions to Haiti. Obama is scheduled to visit Tampa later on Thursday to follow up his State of the Union speech with an announcement of $8 billion in grants for high-speed train projects and a speech on the economy at the University of Tampa.