WASHINGTON (AP) - Despite desperate pleas from aides, allies, a Republican congressional leader and even his family, Donald Trump refused to call off the Jan. 6 mob attack on the Capitol, instead “pouring gasoline on the fire” by aggressively tweeting his false claims of a stolen election and celebrating his crowd of supporters as “very special,” the House investigating committee showed Thursday night.

The panel documented how for some 187 minutes, from the time Trump left a rally stage sending his supporters to the Capitol to the time he ultimately appeared in the Rose Garden video that day, nothing could compel the defeated president to act. Instead, he watched the violence unfold on TV.

“President Trump didn’t fail to act,” said Rep. Adam Kinzinger, a fellow Republican but frequent Trump critic who flew combat missions in Iraq and Afghanistan. “He chose not to act.”

Testimonies

Plunging into its second prime-time hearing on the Capitol attack, the committee aimed to show a “minute by minute” accounting of Trump’s actions with new testimony, including from two White House aides, never-before-heard security radio transmissions of Secret Service officers fearing for their lives and behind-the-scenes discussions at the White House.

With the Capitol siege raging, Trump was “giving the green light” to his supporters by tweeting condemnation of Vice President Mike Pence’s refusal to go along with his plan to stop the certification of Joe Biden’s victory, a former White House aide told the committee.

Two aides resigned on the spot.

“I thought that Jan. 6, 2021, was one of the darkest days in our nation’s history,” Sarah Matthews told the panel. “And President Trump was treating it as a celebratory occasion. So it just further cemented my decision to resign.”

The committee played audio of Gen. Mark Milley, chairman of the Joint Chiefs of Staff, reacting with surprise to the president’s inaction during the attack.

“You’re the commander in chief. You’ve got an assault going on on the Capitol of the United States of America. And there’s Nothing? No call? Nothing, Zero?” he said.

On Jan. 6, an irate Trump demanded to be taken to the Capitol after his supporters had stormed the building, well aware of the deadly attack, but his security team refused.

“Within 15 minutes of leaving the stage, President Trump knew that the Capitol was besieged and under attack,” said Rep. Elaine Luria, D-Va.

At the Capitol, the mob was chanting “Hang Mike Pence,” testified Matt Pottinger, the former deputy national security adviser, as Trump tweeted his condemnation of his vice president.

Pottinger, testifying Thursday, said that when he saw Trump’s tweet he immediately decided to resign, as did Matthews, who said she was a lifelong Republican but could not go along with what was going on. She was the witness who called the tweet “a green light” and “pouring gasoline on the fire.”

Meanwhile, recordings of Secret Service radio transmissions revealed agents at the Capitol trying to whisk Pence to safety amid the mayhem and asking for messages to be relayed telling their own families goodbye.

Previously recorded

The panel showed previously unseen testimony from the president’s son, Donald Trump, Jr., with a text message to his father’s chief of staff Mark Meadows urging the president to call off the mob.

Trump son-in-law Jared Kushner also testified in a recorded video of a “scared” GOP Leader Kevin McCarthy calling him for help.

And in a gripping moment, the panel showed Trump refusing to deliver a speech the next day declaring the election was over, despite his daughter, Ivanka Trump, heard off camera, encouraging him to read the script.

“The president’s words matter,” said Luria, D-Va., a former Naval officer on the panel. “We know that many of the rioters were listening to President Trump.”

Luria said the panel had received testimony confirming the powerful previous account of former White House aide Cassidy Hutchinson of an altercation involving Trump as he insisted the Secret Service drive him to the Capitol.

Among the witnesses testifying Thursday in a recorded video was retired District of Columbia Metropolitan Police Department Sgt. Mark Robinson who told the committee that Trump was well aware of the number of weapons in the crowd of his supporters but wanted to go regardless.

“The only description that I received was that the president was upset, and that he was adamant about going to the Capitol and that there was a heated discussion about that,” Robinson said.

Chairman Bennie Thompson, appearing virtually as he self-isolates with COVID-19, opened Thursday’s hearing saying Trump as president did “everything in his power to overturn the election” he lost to Joe Biden, including before and during the deadly Capitol attack.

“He lied, he bullied, he betrayed his oath,” charged Thompson, D-Miss.