Major News with Major Garrett: US & Iran back to war; Maine Senate race; Mitch McConnell's health

CBS News Chief Washington Correspondent Major Garrett is a weekly guest of Chris and Amy. The US and Iran are back at war again, and that's, 'not a trivial matter,' says Garrett. What next for the Democrats in the Maine Senate race? Graham Plattner had, 'a closet full of shoes,' that kept dropping, says Garrett. Speculation continues to swirl about the health of Senator Mitch McConnell.