The chaos in the U.S. Capitol on Wednesday unfolded after President Donald Trump spent weeks whipping up his supporters with false allegations of fraud in the Nov. 3 election, culminating in a call to march to the building that represents U.S. democracy.

Trump, who has refused to concede his loss to Democratic President-elect Joe Biden, had urged his supporters multiple times to come to Washington for a rally on Wednesday, the day the U.S. House of Representatives and Senate were scheduled to certify the results of the Electoral College.

"Statistically impossible to have lost the 2020 Election," Trump, a Republican, tweeted on Dec. 20. "Big protest in DC on January 6th. Be there, will be wild!"