Trump’s feud with Corker reflects GOP’s shifting direction

President Trump's social media feud with Republican Sen. Bob Corker over the weekend ended with the senator asserting that Trump’s reckless threats could set the U.S. “on the path to World War III.” Tamara Keith of NPR and Stuart Rothenberg of Inside Elections join Judy Woodruff to discuss the president’s fight with Corker, efforts to undo the Obama legacy and Vice President Pence’s NFL walkout.