The chairman of the House Judiciary Committee issued a subpoena on Friday for special counsel Robert Mueller’s full report as Democrats intensified their investigation of President Donald Trump, but leaders stopped short of liberal demands for impeachment proceedings.

House Speaker Nancy Pelosi has insisted on a methodical, step-by-step approach to the House’s oversight of the Trump administration, and she refuses to consider impeachment without public support, including from Republicans, which seems unlikely.

But in light of Mueller’s findings, Democratic leaders are under mounting pressure from the party’s rising stars, deep-pocketed donors and even a presidential contender to seize the moment as a jumping-off point for trying to remove Trump from office.

Speaking on Friday in Belfast as Pelosi wrapped up a congressional visit to Ireland, she declined to signal action beyond Congress’s role as a check and balance for the White House.

That approach isn’t enough for some liberals who see in Trump’s actions not just a president unfit for office but evidence of obstruction serious enough that Mueller said he could not declare Trump exonerated.Rep Alexandria Ocasio-Cortez is now signed on to an impeachment resolution from fellow Democratic Rep Rashida Tlaib of Michigan, bringing new energy to the effort. Senator Elizabeth Warren, D-Mass, a presidential candidate, said on Friday the House “should initiate impeachment proceedings against the president”.

And billionaire Tom Steyer, a leading advocate of impeachment, has grown impatient with the House’s pace of investigations and wants televised hearings to focus Americans’ attention on Trump. Democrats, though, may see greater power in pursuing an investigative effort, leaving impeachment on the shelf as a break-glass option.The Judiciary chairman, Rep Jerrold Nadler, says he expects the Justice Department to comply with the committee’s subpoena for the full report by May 1. That’s the same day Attorney General William Barr is to testify before a Senate committee and one day before Barr is to appear before Nadler’s panel. Nadler also has summoned Mueller to testify by May 23.

“It now falls to Congress to determine the full scope of that alleged misconduct and to decide what steps we must take going forward,” Nadler said.