Senior White House adviser Stephen Miller speaks to members of the media during a news conference outside the White House on Oct. 11. Zach Gibson/Bloomberg/Getty Images

Senior White House adviser Stephen Miller got into a shouting match with reporters over legitimacy of the White House’s criticisms about the Bidens’ ties to Ukraine.

On Hunter Biden, Miller shouted at a reporter that the Biden son's work and pay for a Ukraine energy company was "substantiated."

“It’s substantiated is the point! Every part of it is substantiated. And the fact that Joe Biden was the point person on Ukraine is substantiated. And the fact that the prosecutor had a responsibility to investigate that is substantiated," Miller said.

Asked why the President wouldn’t task the Department of Justice with an investigation into Joe Biden, Miller said, “I’m not going to get into what the DOJ is or isn’t investigating.”

He added that he thinks the media “should be grateful” to Rudy Giuliani for “helping shine a light on” Biden.

Miller also said he doesn’t know who the intelligence community whistleblower is, but he criticized the whistleblower for being a partisan. He claimed the whistleblower’s letter was “soaked” in partisan language.

He said he encounters bureaucrats every day who “hate the President” and are “enmeshed in the federal bureaucracy” and “who are using their position in the civil service to obstruct the results of a Democratic election.”

“It happens every single day,” he added.

He then went back to shouting, “If you are naïve enough to believe that the federal civil service engages in no partisan behavior on a daily basis, I surely can’t help you!”