Here is a brief history of Mr. Trump’s stormy relationship with Ms. Brzezinski and Mr. Scarborough.

Early friendship with Trump draws criticism

The friendly relationship between Mr. Scarborough, Ms. Brzezinski and Mr. Trump became a source of concern at NBC, the parent company of MSNBC, as his campaign gathered steam in late 2015 and early 2016.

It didn’t help that Mr. Scarborough often praised Mr. Trump, initially declined to rule out running as his vice president and told an audience in Manhattan that he had given Mr. Trump political advice, an admission that drew harsh words from media critics.

“You guys have been supporters,” Mr. Trump told the two hosts during an interview the morning after he won the New Hampshire primary. “And I really appreciate it. And not necessarily supporters, but at least believers.”

Then things began to sour



Mr. Scarborough said on the air and in a Washington Post op-ed in May 2016 that he did not think Mr. Trump had what it took to win the election, comments that angered the candidate and drew a rebuke on Twitter.