WASHINGTON, DC - JUNE 13: A video of former U.S. President Donald Trump speaking is shown on a screen during the second hearing held by the Select Committee to Investigate the January 6th Attack on the U.S. Capitol on June 13, 2022 on Capitol Hill in Washington, DC. The bipartisan committee, which has been gathering evidence related to the January 6, 2021 attack at the U.S. Capitol for almost a year, is presenting its findings in a series of televised hearings. On January 6, 2021, supporters of President Donald Trump attacked the U.S. Capitol Building in an attempt to disrupt a congressional vote to confirm the electoral college win for Joe Biden. (Photo by Jabin Botsford-Pool/Getty Images)

WASHINGTON (AP) — Donald Trump’s closest campaign advisers, top government officials and even his family were systematically dismantling his false claims of 2020 election fraud ahead of the Jan. 6 attack on the Capitol. But the defeated president seemed “detached from reality,” clinging to outlandish theories to stay in power. That’s the assessment from former Attorney General William Barr’s testimony presented at Monday’s House hearing investigating the insurrection. The panel is delving deeper into what it calls the “big lie,” the defeated Republican president’s false claims of voter fraud. The panel says Trump’s falsehoods provoked a mob of his supporters to attack the Capitol.