center. jenna: they better get working they only have a couple of hours before they need the stage tonight. there is quite a line up of people talking, marco rubio, governor romney, and the mystery guest, we don t know who that is. maybe james rosen knows something about that. last night was paul ryan s big moment in the spotlight accepting the party nomination for vice president. it didn t take long for democrats to tear apart what he had to say. tis the season for that on both sites. james rosen is live in tampa with a fact check on all of this and maybe, maybe a scoop on the mystery guest. james. reporter: maybe a twaoe tweese at the end of the hit. jim messina wasn t mincing words at 4:37am today when he blasted out a fundraising email in which he accused congressman ryan of having quote lied about medicare and the stimulus and the