Trump was once a huge fan of Gen. Mattis, and there's video to prove it

I think Mattis knew his days were numbered early in his tenure as SECDEF. It was said Mattis prepared a Defense in brief for Trump. Trump crossed his arms and arrogantly called everyone dopes and babies. That is our military genius speaking.

Everyone is ‘entitled’ to their own opinion...even Presidents and Generals.
...and everyone has the right to change their minds and their opinions...

I dont need proof I remember it well.