Syndicated columnist Mark Shields and Washington Post columnist Michael Gerson join Judy Woodruff to discuss the week in politics, including Sen. Bernie Sanders' victory in the New Hampshire primary and how it shapes the race for the 2020 Democratic presidential nomination, President Trump's strategy for reelection and the political conflict surrounding the Justice Department. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders