He will then appear before the House Intelligence Committee at noon, in a hearing that is expected to last about two hours.
Still, Democrats on the Judiciary Committee plan to focus on a narrow set of episodes laid out in the report to direct Americans' attention to what they see as the most egregious examples of Trump's conduct, which point to obstruction of justice.
The former special counsel's probe, which also investigated possible collusion, found that members of the Trump campaign knew they would benefit from Russia's illegal actions to influence the election, but did not take criminal steps to help.
Mueller said in a rare and remarkable public statement in May his investigation could not clear Trump of obstruction of justice, and that charging the President was not an option his office could consider. But Mueller believed Trump couldn't be indicted in part because of a Justice Department opinion against prosecuting a sitting president. We had no collusion, no obstruction, we had no nothing. "The Democrats were devastated by it, they went insane".
He kept up the attacks on Twitter on Monday: "Highly conflicted Robert Mueller should not be given another bite at the apple. In the end it will be bad for him and the phony Democrats in Congress who have done nothing but waste time on this ridiculous Witch Hunt", Trump tweeted.
Mueller will appear before the House Judiciary and Intelligence Committees this week for a combined five hours of testimony on his Russian Federation investigation - three hours before Judiciary and two hours before Intelligence.
"The report presents very substantial evidence that the president is guilty of high crimes and misdemeanors", he said, using the legal phrase that serves as the basis for impeachment.
Former assistant US attorney and Fox News contributor Andy McCarthy predicts the special counsel won't go beyond the Russian Federation report no matter how hard he's pushed.
Rep. Jerry Nadler, D-N.Y., chairman of the House Judiciary Committee, told Fox News Sunday, "We have to.let Mueller present those facts to the American people, and then see where we go from there, because the administration must be held accountable and no president can be above the law".
Raskin said he might ask Mueller "why he felt he needed to write letters to protest" Attorney General William Barr's "misstatement of the contents of the report".
Stephen Collinson, writing for CNN, pointed out just how risky Mueller's testimony, such as it might be, is to the Democrats.
"If you've got to go down this path, you have to make sure that the public has an understanding of why", Pelosi said during The Christian Science Monitor Breakfast. Collinson said the Democrats "hope the hearings will bolster their 2020 case that he [the president] is too corrupt and unpatriotic to deserve a second term".