Mika Brzezinski: Trump's tweet 'really sad for our country'

Mika Brzezinski and her 'Morning Joe' co-host/fiancé Joe Scarborough went on their show today to respond to President Trump's disparaging tweets yesterday. “I think it’s been fascinating, and frightening, and really sad for our country," The couple also wrote an op-ed in this morning's Washington Post, offering a more poignant response regarding the president. “America’s leaders and allies are asking themselves yet again whether this man is fit to be president. We have our doubts, but we are both certain that the man is not mentally equipped to continue watching our show, ‘Morning Joe,’” Trump then responded on Twitter.