Trump's own words highlighted in impeachment trial

House Democrats prosecuting Donald Trump's impeachment trial are methodically tracing his months-long effort to undermine his supporters' faith in the election results. They say they will show he is responsible for last month's deadly riot at the U.S. Capitol.

During arguments Wednesday, impeachment managers showed a flurry of excerpts from Trump speeches in which the then-president told supporters the only way he could lose is if the election results were rigged.

"This attack did not come from one speech and it didn't happen by accident," House Impeachment Manager Joaquin Castro argued. "the evidence shows clearly this mob was provoked over many months by Donald J. Trump."

The effort to challenge the results continued after the election, with Trump telling his supporters the election had been stolen and that they shouldn't accept the results.

Impeachment managers also pushed back at defence team arguments that Trump's words were protected by the First Amendment. They said the case was not about protected political speech but rather about Trump's incitement of violence.