Acting Attorney General Matthew Whitaker says he has "not interfered in any way" in the special counsel's Russia investigation.

Whitaker also says he has not talked to President Donald Trump or senior White House officials about the investigation.

The acting attorney general made the comments Friday during a contentious hearing of the Democrat-led House Judiciary Committee.

Whitaker has been supervising special counsel Robert Mueller's investigation after rejecting the advice of career ethics officials to step aside out of an abundance of caution.

He also said that he has run the Justice Department to the best of his ability, with "fidelity to the law and to the Constitution."

The testimony comes as Whitaker is likely winding down his tenure leading the Justice Department with the almost certain confirmation of Attorney General nominee William Barr in the coming weeks.

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