<p>Mark Murray looks back at the last four years and recounts all the ways President Trump changed the White House.</p>

First Ladies: How falling spousal approval ratings reveal partisanship

The team behind Meet the Press and the NBC News Political Unit brings you the most important political stories of the day. From the White House to 2020, we’ll bring you the latest data from the NBC/WSJ poll, election ratings and analysis every day, in time for your evening commute.

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