With Mitt Romney overseas, his team has dispatched an army of vice presidential contenders to swing states around the country to campaign in the presumptive GOP nominee’s place.

The Number Two spot on the ticket usually plays the attack dog role and these campaign stops will be seen as try out roles for running-mate wannabes.

Louisiana Gov. Bobby Jindal, Virginia Gov. Bob McDonnell, Sens. Marco Rubio (R-Fla.), John Thune (R-S.D.) and Rob Portman (R-Ohio), former Minnesota Gov. Tim Pawlenty, and Rep. Paul Ryan (R-Wis.) are among those making appearances for Romney.