The congressional committee investigating the attack on the U.S. Capitol by supporters of former U.S. President Donald Trump trying to overturn his 2020 election defeat presented testimony on Thursday showing that close allies — even his daughter — rejected his false claims of voting fraud.

The U.S. House of Representatives select committee probing the Jan. 6, 2021, assault also showed graphic footage of thousands of rioters attacking police and smashing their way into the Capitol. It was the first of six planned hearings intended to show that the Republican former president conspired to unlawfully hold onto power.

The Democratic-led committee presented video of testimony from key Trump administration figures including his daughter Ivanka Trump and her husband Jared Kushner, Attorney General William Barr, campaign spokesperson Jason Miller and General Mark Milley.