I’ve had to put up with the Fake News from the first day I announced that I would be running for President. Now I have to put up with a Fake Book, written by a totally discredited author. Ronald Reagan had the same problem and handled it well. So will I!

— Donald J. Trump (@realDonaldTrump) January 7, 2018

Reagan literally had Alzheimer’s, which was clearly manifesting itself during his second term, and once it was diagnosed the foreshadowing was clear even by the 1984 campaign.

So, saying you’ll handle it like Reagan is not actually a smart thing to say.