Donald Trump is attending the Pittsburgh Steelers football game Sunday night as they face the New York Jets, and Fox News preempted the game with a surprising report about a Vice President Kamala Harris endorsement. Trump made headlines on Saturday when he confused what day the Steelers game, which he would be attending, was happening. Then the following day, before the game actually began, the conservative Fox News network frequently watched by Trump posted about a major endorsement for Harris. “Ahead of Republican presidential candidate Donald Trump’s appearance at Sunday’s Pittsburgh Steele…