DOUG WEAD (PRESIDENTIAL HISTORIAN): It's not necessarily that the person leaving did a bad job at all -- it's because there's new things he wants to accomplish and new people with skills who have them to do. 

I will say this, Melania Trump, very healthy, her comments and speaking up for herself. You may know all about the world and be the smartest person on earth about the world -- if you're not smart enough to figure out you need to treat the president's wife and her staff, the president's daughter and son-in-law and their staff with respect, you're not smart enough to work in the White House. I was very impressed with Melania Trump. 

BRIAN KILMEADE (CO-HOST): She pushed out [national security adviser] John Bolton's deputy because of the rude -- the way she treated her staff on the Africa trip, and the way she's treated others. They say she's not worthy of the White House; the next day she's gone. And for those people who don't think Melania has the president's back, you have never been around those two. This is really about the president and getting loyalty around him, and she's got great instincts.

Related:

Yahoo News: Melania Trump Calls for Firing of Mira Ricardel in Unprecedented Move

NBC News: Melania Trump calls for firing of top national security aide in extraordinary move

Previously:

Michelle Obama and the bad faith of right-wing media regarding Melania Trump

Fox’s Tomi Lahren claims she’s “never seen a first lady be attacked” like Melania Trump

Sean Hannity attacks Michelle Obama because she criticized Trump’s racist birther lies

Michelle Obama derangement syndrome: Four years, 40 smears

Fox & Friends on Michelle Obama's comments: “The claws come out”