And majority are worrying about how they'll make the most their short time in front of the stern, reticent former Federal Bureau of Investigation director.
Mueller had been scheduled to appear on July 17 before the House Judiciary and Intelligence committees in back-to-back sessions where 22 members from each committee would get to question the special counsel.
The public testimony will begin at 8:30 a.m. EDT in the House Judiciary Committee and will last three hours.
Mueller will now appear before the House Judiciary Committee and House Intelligence Committee on July 24 for two separate hearings.
Under a tentative agreement, the 41-member Judiciary Committee would be granted an extra hour to question Mueller, lawmakers briefed on the discussions told Politico.
"We will use this postponement to nationalize our efforts, giving national attention to the disenfranchisement of D.C. residents and to continue to build support for the bill in the House, Senate and across the country", Norton said.
Mueller had been scheduled to appear on the morning of July 17 before the House Judiciary Committee and then that afternoon before the House Permanent Select Committee on Intelligence.
Mueller's 448-page report concluded there was insufficient evidence to prove the Trump campaign conspired with Russian Federation to interfere in the election or committed obstruction.
Democrats want to highlight each of those 10 episodes in their hearing, well aware that most of the public has not read the report.
The special counsel agreed to testify only after receiving a subpoena. It said no collusion, and it said, effectively, no obstruction.
"There's nothing Mueller "can say", Trump said".
Trump and Barr had opposed to Mueller testifying before the Congress. Mueller said at the news conference that charging a president with a crime was "not an option" because of longstanding Justice Department policy.
The official did not name that person.
The committees haven't formally introduced any format.
The closed-door interviews with the deputies had appeared to be in doubt for several days after the Justice Department has recently pushed back on the arrangement. The delay would be in exchange for more time for questioning. This will be especially true of Republicans on both committees, who will seek to use their time to undermine Mueller and his investigation and to advance the ridiculous conspiracy theories that have been advanced by the President, his sycophants in Congress, and his propagandists at Fox News and elsewhere in the conservative media.
"I have been elected just like anyone else here", said Arizona Rep.
It's unclear whether Mueller's testimony will give Democratic investigations new momentum.
That means the committees may have to go through a lengthy court process to get more information.
"I don't think anyone has said they want their time in the spotlight, I think at the end of the day the American people will be better served if we spend as much time as possible communicating the importance of the stakes of this hearing as it relates to an incredible attack on our democracy, unprecedented in our nation's history", Jeffries said.