This, from the press pool report on the Texas Tie and Boots shin-dig last night:

POTUS, wearing a black tux and black tie with an American flag on his lapel, set off chants of “Rudy! Rudy” when he said he’d heard Rudy Giuliani was in the crowd. All eyes scanned the mezzanine overlooking the ballroom, but there were no Rudy sightings. (Your pool later bumped into Rudy as your pool was leaving and he appeared to be entering, shaking hands and looking positively presidential in a red bow tie).