The aide in charge of the Mitt Romney's vice presidential search is traveling with the presumptive Republican nominee in Colorado Thursday as he campaigns with some prominent GOP governors rumored to be on the running mate short list.Romney will be joined Thursday by Virginia Gov. Bob McDonnell, Louisiana Gov. Bobby Jindal, New Mexico Gov. Susana Martinez and New Jersey Gov. Chris Christie at a rally at a high school in Basalt, Colo. — each of whom has been thought to be a potential vice presidential pick.And Beth Myers, Romeny's adviser who has been heading the vetting process, will also be in attendance, according to Romney adviser Kevin Madden's Twitter account.