Others are closely re-reading Mueller's 448-page report. 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.
The House Judiciary Committee delayed the former special counsel's testimony until July 24th.
Mueller's limited availability meant restrictions on the amount of time for some members to ask questions and also made it appear that some members wouldn't be able to speak at all. Under the initial plans, each committee had just two hours with Mueller.
The hearing on statehood will mark the first time in roughly a quarter-century that the issue receives a formal review from a House committee.
Pushing back his appearance will give Mueller more time for questioning. Both House panels had expected to have a chance to question the deputies, Aaron Zebley and James L. Quarles III, in private after Mr. Mueller's public testimony.
Mueller and the two House panels struck a deal Friday to reschedule his testimony for July 24, as part of an agreement that gives lawmakers more time to question him about his investigation into Russian interference in the 2016 election and possible obstruction of justice by President Trump.
Democrats want to ask Mueller about his conclusions, including that he could not exonerate Trump on obstruction of justice after detailing several episodes in which Trump tried to influence the investigation.
"They want to hurt the president for the election, because I see what I'm running against", Mr. Trump said before the hearing was rescheduled. More junior Democrats on the committee had also registered complaints, arguing that it was unfair to leave them out of such a closely watched event.
One of the people said the hearing would be delayed a week.
The official did not name that person. Many people have chalked this up to Mueller's by-the-book personality and his obvious desire not to get caught up in the partisan whirlwind that has developed around the report and the ongoing question of whether or not to begin impeachment proceedings against the President.
The committees have not officially announced any format.
Neither Democratic nor Republican spokespeople for the committee immediately responded to Newsweek's request for comment.
The hearing set for July 24 has been lengthened to three hours. It isn't clear when new hearings might take place. In the news conference, Mueller indicated that it was up to Congress to decide what to do with his findings.