It was the most members of a president's party to vote for his impeachment in history. Many Republicans faced safety threats ahead of the vote, but Trump had gone too far for this group.
Several GOP members, including the No. 3 House Republican, have said they will vote for impeachment. Elissa Slotkin, a Democrat from a Trump-voting district, sees several more Republicans joining.
"We can't allow him to remain in office, it's a matter of preserving our Republic and we need to fulfill our oath," wrote the Minnesota Democrat, as Trump supporters stormed the U.S. Capitol.
Democratic Rep. Val Demings of Florida was one of the House impeachment managers in the Senate impeachment trial. She says Trump's impeachment was "totally worth it" despite the Senate's acquittal.
The State of the Union gets massive television ratings. This year, President Trump will deliver it a day before senators vote on whether to remove him from office.
Art Lien, a courtroom artist who normally covers the Supreme Court, has been sketching the Senate proceedings. "I'm looking for color," he says — such as sleeping senators and fidget spinners.
The Harvard law professor told NPR he will present constitutional arguments during the Senate trial — but will not be involved in other strategic decisions.