Focus on campaign trail turns to foreign policy , national security , terrorism . Candidates trying to portray themselves as the one with the most experience . Obama says he would call on Musharraf to step down , Thompson disagrees . ( CNN ) -- Thompson questions Giuliani 's foreign policy experience .
Focus on campaign trail turns to foreign policy , national security , terrorism . Candidates trying to portray themselves as the one with the most experience . Obama says he would call on Musharraf to step down , Thompson disagrees . Thompson questions Giuliani 's foreign policy experience .