Cheney: January 6 committee has 'firsthand testimony' that Ivanka asked Trump to intervene during insurrection

Washington (CNN) Members of the House select committee investigating January 6 said Sunday that they have critical testimony about communications to former President Donald Trump on the day of the deadly attack.

Wyoming Rep. Liz Cheney, the vice chair of the committee and one of its two Republican members, told ABC News that the panel has "firsthand testimony" that during the attack, Trump's daughter and then-senior adviser Ivanka Trump asked him to intervene. And Chairman Bennie Thompson, a Mississippi Democrat, told CNN the panel has "significant testimony" that the White House "had been told to do something."

"We know his daughter -- we have firsthand testimony that his daughter Ivanka went in at least twice to ask him to 'please stop this violence,'" Cheney told ABC News.

CNN previously reported on some of these interactions, described in the books "I Alone Can Fix It," by Washington Post reporters Carol Leonnig and Philip Rucker, and "Peril," by Post journalists Bob Woodward and Robert Costa. Ivanka Trump repeatedly tried to intervene, talking to her father three times. "Let this thing go," she told him. "Let it go," she said, according "Peril."

Thompson told CNN's Dana Bash on "State of the Union" Sunday: "We have significant testimony that leads us to believe that the White House had been told to do something. We want to verify all of it so that when we produce our report and when we have the hearings, the public will have an opportunity to see for themselves."