With just five days until President-elect Donald Trump's inauguration, "Face the Nation" talks to Vice President-elect Mike Pence and Sen. Joe Manchin, D-West Virginia, about a Senate Intelligence Committee investigation into Russian election meddling. We sit down with former Speaker of the House Newt Gingrich, who discusses what he hopes Mr. Trump will do when it comes to the intelligence community. Plus: Analysts look at the political landscape and the challenges Mr. Trump faces.