House prosecutors wrapped up their impeachment case against Donald Trump on Thursday with an impassioned appeal to the Senate to convict the former president of inciting the deadly January 6 attack on the US Capitol and bar him from ever holding office again.

"We humbly, humbly ask you to convict President Trump for the crime (of) which he is overwhelmingly guilty," said Democratic Representative Joe Neguse, one of the nine impeachment managers from the House of Representatives.

Donald Trump Impeachment
House impeachment managers walk through the Rotunda in the Capitol on Tuesday Photo: POOL / Win McNamee

"Because if you don't, if we pretend this didn't happen -- or worse, if we let it go unanswered -- who's to say it won't happen again?"

The House impeachment managers rested their case after two days of arguments that included Trump's own words and hours of graphic video from the assault on the Capitol by Trump supporters who were seeking to halt certification of Democrat Joe Biden's November 3 election victory.

Bill Cassidy
Republican Senator Bill Cassidy voted that the impeachment trial was constitutional Photo: POOL / Chip Somodevilla

Trump's lawyers will begin their defense on Friday, arguing that the former president cannot be held personally responsible for the storming of Congress.

They have also argued that the trial itself is unconstitutional because Trump is now out of office, although the Senate rejected that argument earlier this week.

National guard at US Capitol
National Guard soldiers remain on duty on Capitol Hill protecting US lawmakers after the deadly unrest on January 6 Photo: AFP / Brendan Smialowski

Jamie Raskin, the lead House manager, reminded the 100 senators who are sitting as jurors of their oath to render "impartial justice."

"Exercise your common sense about what just took place in our country," Raskin said, noting that Trump stood by doing nothing for two hours as his supporters rampaged through Congress.

David Schoen, lawyer for Donald Trump
David Schoen, lawyer for former President Donald Trump, argued that the Senate had no jurisdiction to try Trump once he had left office and warned that the impeachment threatened to "tear this country apart" Photo: POOL / Andrew Harnik

"Why did president Trump not tell his supporters to stop the attack on the Capitol as soon as he learned about it?" Raskin asked. "As our constitutional commander in chief, why did he do nothing to send help?"

Earlier, President Joe Biden said the video evidence against his 74-year-old predecessor presented at the Senate trial may change "some minds."

Donald Trump
Donald Trump remains popular and powerful among Republicans despite leaving the presidency Photo: AFP / ANDREW CABALLERO-REYNOLDS

But despite what even some Republicans have said was a strong prosecution case, Trump retains an unshakeable grip on the party, making conviction highly unlikely.

It would take a two-thirds majority in the 100-member Senate, meaning 17 Republicans would need to join the chamber's 50 Democrats.

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Before the second day of Donald Trump's Senate trial, a screen shows images of a police officer trapped by a pro-Trump mob at the US Capitol Photo: AFP / Brendan Smialowski

The mayhem on January 6 erupted after Trump held a large rally near the White House, insisting falsely, as he had done since losing to Biden in November, that he was cheated.

Instructed by Trump to march on Congress, where lawmakers were at that moment certifying Biden's election, the crowd smashed through police lines, then went on a rampage.

The chaos left five people dead, including one woman shot after she invaded the Capitol and one policeman killed by the crowd.

Video footage played by impeachment managers showed the mob hunting down opponents of Trump and senior figures, including then vice president Mike Pence, having to flee to safety.

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IMAGES AND SOUNDBITES House managers urge US senators to convict Donald Trump as they conclude the presentation of their case at the second impeachment trial of the former president in Washington. "Exercise your common sense about what just took place in our country," lead House manager Jamie Raskin says. Photo: US SENATE

The defense will stress that Trump did not expressly tell his supporters to commit violence, but Raskin pointed out that the Republican president had been stoking anger and encouraging extremism since Election Day -- and even before.

"This pro-Trump insurrection did not spring out of thin air," Raskin said. "This was not the first time Donald Trump had inflamed and incited a mob."

Raskin said it was imperative the Senate convict Trump and bar him from running for the White House again in 2024.

"Is there any political leader in this room who believes that if he's ever allowed by the Senate to get back into the Oval Office Donald Trump would stop inciting violence to get his way?" Raskin asked.

"Would you bet the future of your democracy on that?

Raskin also dismissed claims by Trump's lawyers that the president did not incite the riot but was just exercising his free speech rights under the First Amendment of the Constitution.

Calling this a "smokescreen," Raskin said that "nobody can incite a riot.

"First Amendment doesn't protect it," he said. "Nobody in America would be protected by the First Amendment if they did all the things that Donald Trump did."

Biden said he did not watch any of the trial live but had seen news coverage of Wednesday's wrenching video footage.

"My guess is some minds may be changed," Biden told reporters in the White House.

Press Secretary Jen Psaki said Biden, who has been trying to stop the trial from overshadowing his push for a huge economic stimulus package and the fight against Covid-19, was not intending to predict the outcome.

Republican Senator Bill Cassidy of Louisiana said video footage shown by House managers on Wednesday was "powerful," but "how that influences final decisions remains to be seen."

Other Republican senators have clearly already made up their minds and do not intend to break with Trump, who has threatened to derail their careers.

"The 'Not Guilty' vote is growing after today," tweeted Republican Senator Lindsey Graham of South Carolina. "I think most Republicans found the presentation by the House Managers offensive and absurd."

Republican Senator Josh Hawley of Missouri echoed the argument of Trump's defense lawyers that it is unconstitutional to try a former president.

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