​So, I was on Twitter and saw that 'Salem Witch Trial' trending on Twitter and wondered why. After reading a few tweets, I saw that it was a sentence in the letter that Trump sent to House Speaker Nancy Pelosi. 

"More due process was afforded to those accused in the Salem Witch Trials." 

AP News Reported 

In the fiercely accusatory, sometimes rambling six-page letter, Trump defended his "absolutely perfect" phone call with the Ukraine president that sparked the impeachment inquiry. He also tried to justify anew the Ukrainian investigations he wanted into Democratic rival Joe Biden while withholding military aid from the vulnerable U.S. ally and disputed the charges of abuse of power and obstruction of Congres' investigation in the charges against him.

"Ÿou are the ones bringing pain and suffering to our Republic for your own selfish, personal political and partisan gain," Trump contended, accusing Democrats of "Trump Derangement Syndrome" while still smarting from their 2016 election losses. Painting himself as a blameless victim, as he often does, he compared the impeachment inquiry to the ''Salem Witch Trials." When asked later if he bore no responsibility for the proceedings, he said, " No, I don't think any. Zero, to put it mildly."