Capitol Police officer Harry Dunn recalled the racist verbal abuse he endured from rioters on Jan. 6 and, in emotional testimony, said it was the first time he had been called a racial slur in uniform.

"I'm a law enforcement officer and I do my best to keep politics out of my job, but in this circumstance I responded, well, I voted for Joe Biden, does my vote not count? Am I nobody?'" he said he said to rioters who falsely called the election stolen.

"That prompted a torrent of racial epithets," Dunn continued.

"I sat down on the bench in the rotunda with a friend of mine, who is also a Black capitol police officer and told him about the racial slurs I endured. I became very emotional and began yelling, 'How the blank could something like this happen? Is this America?'" he said. "I began sobbing."

Dunn said that in the days following the attempted insurrection, other Black officers shared similar stories of racial abuse.

Metropolitan Police Department officer Daniel Hodges, who was crushed in a doorway on Jan. 6, recalled how he had to wrestle with one rioter who tried to take his baton and another shouted at him, "'You will die on your knees.'"

Hodges, as Capitol Police officer Harry Dunn has before, called the rioters "terrorists" throughout his testimony.

"The terrorists alternated between attempting to go break our defense and shouting at or attempting to convert us," he said.

He recounted in detail how rioters beat him while he was trapped in a doorway.

"Directly in front of me, a man seized the opportunity of my vulnerability, grabbed the front of my gas mask and used it to beat my head against the door," he said. "He never uttered any words but opted instead for guttural screams. I remember him foaming at the mouth."

In powerful testimony, Metropolitan Police Department officer Michael Fanone, who was dragged down the Capitol steps, beaten with a flagpole and tased repeatedly on Jan. 6, recalled how rioters chanted, "kill him with his own gun" as he was being beaten and lying on the ground.

"I said as loud as I could manage ‘I've got kids,'" he testified.

Fanone didn’t hold back when calling out lawmakers who have blocked efforts for an investigation, slamming his fist on the witness table when he said, "The indifference shown to my colleagues is disgraceful."

"I feel like I went to hell and back to protect them and the people in this room, but too many are now telling me that hell doesn't exist or that hell actually wasn't that bad," he said.

"Nothing, truly nothing, has prepared me to address those elected members of our government who continue to deny the events of that day, and in doing so betray their oath of office," he added.

Capitol Police Sgt. Aquilino Gonell was the first to speak of the four officers and described the day as a scene "from a medieval battlefield."

"I could feel myself losing oxygen and recall thinking to myself 'this is how I’m going to die, trampled defending this entrance,'" he said in an emotional testimony.

Gonell described the verbal and physical attacks as horrific and devastating and recalled some of the language used that the officers say still haunt them.

"'If you shoot us, we all have weapons, and we will shoot back," or 'we will get our guns.' 'We outnumber you, join us,' they said. I also heard specific threats on the lives of Speaker Nancy Pelosi and then-Vice President Mike Pence,” he recalled.

Earlier, when video of the Capitol attack played, the four uniformed witnesses fidgeted in their seats, and Gonell appeared to tear up, wiping his eyes. At one point, Metropolitan Police Department officer Michael Fanone leaned over and whispered something in his ear, clasping his shoulder.