"What's next I hope is that he'll come to the committee, release as much as possible of the Mueller report," Graham told reporters during a press conference.

ADVERTISEMENT Graham added that he wants Barr to testify publicly. He is set to speak to the attorney general at noon.

Mueller handed over his report on his investigation into the 2016 election to the Justice Department on Friday, marking the official end of the two-year, closely watched probe on Russia's election interference.

Graham added that he will leave it up to Barr if Mueller should testify.

Mueller, according to a four-page letter Barr sent to lawmakers, did not uncover evidence that the Trump campaign conspired or coordinated with the Russian government to interfere in the 2016 election.