NEW: President Trump shakes the hand of Secret Service Officer Victor Gonzales, who took down the alleged gunman at April's WHCA Dinner. Gonzales received the

NEW: President Trump shakes the hand of Secret Service Officer Victor Gonzales, who took down the alleged gunman at April's WHCA Dinner. Gonzales received the White House Correspondents' Association's President's Award for Exceptional Service for his role in thwarting the assassination attempt. Of…