Mr. Barr is scheduled to testify before the House Judiciary Committee on March 31. And Mr. Bolton’s book, which is scheduled to go on sale on March 17, could yield additional revelations about the president’s behavior with respect to Ukraine and revive calls for Mr. Bolton to testify.
At the same time, cases related to other House investigations of the president, including examinations of his finances and whether he violated the emoluments clause of the Constitution by accepting payments from representatives of foreign governments who frequent his hotels, are working their way through the courts.
The Supreme Court has agreed to decide whether Mr. Trump can block the release of his financial records; a ruling is expected by June. An appeals court is considering whether Mr. Trump can order his advisers, including Donald F. McGahn II, the former White House counsel, from complying with congressional subpoenas.
Still, Representative Katherine M. Clark, Democrat of Massachusetts and vice chairwoman of the Democratic caucus, said Democrats believed the cure for Mr. Trump’s behavior runs through the ballot box.
“A lot of this is going to be up to making sure that we are successful in November,” she said.
Democrats say they have never taken their eyes off their legislative agenda, in particular lowering health care costs. Even as they voted to impeach Mr. Trump, Democrats teamed up with him on a new trade deal with Mexico and Canada.
Before they left for recess, Democrats unveiled a $760 billion infrastructure plan that they have said is aimed at jump-starting bipartisan talks with the administration on how to fix the nation’s crumbling roads, rails and bridges. Geoff Garin, a Democratic pollster, said the plan would give Democrats something tangible to talk about in their home districts. But the chances of any election-year deal with Mr. Trump on the issue are vanishingly remote.
Mr. Garin said his surveys on impeachment showed that while most Americans were ambivalent about removing the president from office, a majority believe he engaged in wrongdoing, and committed the acts that formed the basis for the charges against him. Even so, Mr. Garin urged Democrats to follow the plan Ms. Pelosi had outlined for them.