House Lays Out Case Against Trump, Branding Him the ‘Inciter in Chief’

“With his back against the wall, when all else has failed, he turns back to his supporters — who he’d already spent months telling that the election was stolen — and he amplified it further,” said Representative Joe Neguse, Democrat of Colorado.

After dozens of frivolous lawsuits failed, the managers said, Mr. Trump began pressuring officials in key battleground states like Michigan, Pennsylvania and Georgia to overturn his losses there. When that failed, he tried the Justice Department, then publicly attempted to shame Republican members of Congress into helping him. Finally, he insisted that Mr. Pence assume nonexistent powers to unilaterally overturn their loss on Jan. 6, when the vice president would oversee the counting of the electoral votes in Congress.

“Let me be clear: The president was not just coming for one or two people, or Democrats like me,” said Representative Ted Lieu of California, looking out at senators. “He was coming for you.”

At the same time, the managers argued, the president was knowingly encouraging his followers to take matters into their own hands. When an armada of his supporters tried to run a Biden campaign bus off the highway in October, Mr. Trump cheered them on Twitter. He began adopting increasingly violent language, they noted, and did nothing to denounce armed mobs cropping up in his name in cities around the country. Instead, he repeatedly invited them to Washington on Jan. 6 to rally to “stop the steal” as Congress met to formalize President-elect Joseph R. Biden Jr.’s victory.

“When he saw firsthand the violence that his conduct was creating, he didn’t stop it,” Mr. Neguse said. “He didn’t condemn the violence. He incited it further and he got more specific. He didn’t just tell them to fight like hell. He told them how, where and when.”

At times, the presentation, delivered by a group of Democrats with extensive courtroom experience, resembled a criminal prosecution — only in this case, the jury was made up of senators who were also witnesses struggling as they relived in graphic detail the trauma of that day.

Delegate Stacey Plaskett of the U.S. Virgin Islands guided them through much of the video, including scenes of rioters inside the Capitol tauntingly calling for Speaker Nancy Pelosi and flooding into her office just after aides had raced to barricade themselves in a conference room and hid under a table.