Is Donald Trump predicting the future or just tired? The embattled former POTUS, 78, was mocked on social media after mistakenly referring to Kamala Harris as “the president” while speaking at a Michigan rally on Tuesday, August 20. “And she’s the president, and wants to be the President of the United States,” he told his audience of supporters, seemingly not noticing his slip-up immediately. “She’s Vice President, she could do it.” Trump critics quickly took to X, formerly known as Twitter, to drag the controversial politician for everything from his intellect to his age. One user said, “Dona…