An FBI agent refused to give answers on Tuesday as to who Ray Epps is and whether any agents or informants participated in any capacity in the January 6 Capitol riot.

Senator Ted Cruz demanded to know the level of involvement, if any, the agency had in the deadly attack last year and wanted to know more about an ex-Marine accused of being an FBI plant sent to help incite the events last year.

'How many FBI agents or confidential informants actively participated in the events of January 6th?' Cruz asked the FBI's Executive Assistant Director of the National Security Branch Jill Sanborn during a hearing on domestic violence threats on Tuesday.

'Sir, I'm sure you can appreciate that I can't go into the specifics of sources and methods –' Sanborn began, but was cut off but Cruz re-asking the same question.

'I can't answer that,' said Sanborn, who joined the hearing virtually.

'Did any FBI agents or confidential informants commit crimes of violence on January 6?' Cruz pushed.