A raucous and memorable week culminates with new questions about a possible quid pro quo involving the Trump administration and Ukraine, as acting White House Chief of Staff Mick Mulvaney walks back comments and Democrats say the comments prove they’re building their case in the impeachment inquiry. Lawmakers continue to sharply criticize the president’s decision to withdraw U.S. troops from Syria. And members of both parties say a profound goodbye to Maryland Congressman Elijah Cummings.