H.R. McMaster, Trump's former national security adviser, reacts to Waltz leaving post

Trump's former national security adviser, retired Lt. Gen. H.R. McMaster, says the country may be worse off with Mike Waltz leaving his role in the president's Cabinet. McMaster, a CBS News contributor, breaks down the role's importance and how some in Mr. Trump's inner circle may try to influence his mind on matters of national security.