Trump 'turned on' his vice president -Rep. Lieu

"Trump attacked Pence on social media and at rallies, getting his supporters to believe that Mike Pence could stop this certification on January 6th," Lieu said.

Trump had repeatedly said Pence had the power to stop the certification of the election results, even though he did not.

The Democratic House managers prosecuting the case for impeachment, an uphill task in an narrowly divided Senate, said on Wednesday that Trump planted the seeds for the riot by encouraging violence and making false claims the election was stolen long before Jan. 6.