The House committee investigating the Capitol riot suspects there are several versions of a video message recorded by former President Donald Trump in response to the violence on Jan. 6.

One line of inquiry of the panel, which focuses on why it took so long for Trump to call on his supporters to stand down, could find answers in what was recorded in the White House that day.

“It appears that he tried to do a taping several times, but he wouldn’t say the right thing,” Chairman Bennie Thompson told the Washington Post, which reported his statement was based on interviews with witnesses and media reports.

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Video Trump posted to his social media accounts showed him telling his supporters "that you have to go home now."

The video was preceded by tweets from Trump disavowing the violence. Still, Rep. Liz Cheney, the Republican vice chairwoman of the committee, faulted Trump earlier this month for waiting 187 minutes to take sufficient action "when action by our president was required, it was essential, and it was compelled by his oath to our Constitution."

Trump often lashes out at the Jan. 6 committee.

"The Jan. 6 Unselect Committee is a coverup for what took place on November 3rd, and the people of our Country won’t stand for it," he said in a recent statement, referring to the 2020 election that Trump claims was stolen.

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The Jan. 6 committee seeks White House records from the National Archives, including videotapes, but Trump is taking the fight to stop their release to the Supreme Court. The panel is also open to recommending the Justice Department open a criminal investigation against Trump.

"That dereliction of duty causes us real concern,” Thompson said. "And one of those concerns is that whether or not it was intentional, and whether or not that lack of attention for that longer period of time, would warrant a referral."