1. A day of battle before a moment of history.

With a House of Representatives roll call due imminently — and a vote for impeachment considered certain — Republicans and Democrats clashed for hours in a fierce debate that reflected the deep polarization gripping American politics.

Member by member, the House debated a pair of charges that would make Donald Trump the third president in history to face removal by the Senate for “high crimes and misdemeanors.”

Speaker Nancy Pelosi, whose legacy is now tied to impeachment, appealed to every representative to uphold the oath to “protect and defend” the Constitution. Republicans accused the Democrats of manufacturing a case against a president they never viewed as legitimate.