When House Speaker Nancy Pelosi convenes Democrats on Monday to discuss the Mueller report, she will look to strike a delicate balance between principle and politics. To move to impeach Donald Trump—who welcomed, but did not seem to criminally conspire in, Moscow’s meddling, and who sought to impede the special counsel’s probe, according to investigators—is perhaps the right thing to do, in the abstract. But such an effort would all but certainly fail on Capitol Hill, where Republicans have offered at most lukewarm criticism of the president following the report. Worse, some Democrats fear, it may complicate more pragmatic efforts to oust Trump at the ballot box next year.

Pelosi has so far exercised caution, both criticizing Attorney General William Barr for attempting to spin Mueller’s findings in the president’s favor and saying that Trump has behaved “as if the law doesn’t apply to him,” but consistently expressing aversion to impeachment proceedings. “I don’t think we should go down that path, because it divides the country,” Pelosi said in a Washington Post interview in March. “He’s just not worth it.”

While Pelosi made those remarks before the 400-plus-page Mueller report was published in redacted form, painting a disturbing portrait of a president abusing his executive power, she has given no indication that she’s changed her position. Other top Democrats have largely followed suit, mostly ignoring repeated ouster attempts from lawmakers like Brad Sherman and Al Green.

But impeachment calls are no longer confined to the more obscure corners of the party. Elizabeth Warren, one of the highest-profile Democratic senators and 2020 candidates, made waves Friday when she directly called on the House to introduce articles of impeachment against the president, writing that lawmakers’ “constitutional duty” should outweigh any “political considerations” associated with holding Trump accountable for his conduct. “To ignore a President’s repeated efforts to obstruct an investigation into his own disloyal behavior would inflict great and lasting damage on this country,” Warren wrote online. Her fellow 2020 hopefuls haven’t gone quite as far, though contenders Pete Buttigieg and Beto O’Rourke have each suggested they believe Trump deserves to be impeached.

Still, there appears to be a growing sense among some Democrats on Capitol Hill that while a quixotic impeachment attempt may be politically damaging, declining to respond to his behavior would effectively normalize it. “There comes a point in life where we all have to make decisions based upon the fact that it is on our watch,” Elijah Cummings, the chair of the House Oversight Committee, said in a Face the Nation interview Sunday. “I think even if we did not win, possibly, if there were not impeachment, I think history would smile upon us for standing up for the Constitution.”

“If we do nothing here, what is going to happen is that the president is going to be emboldened,” Cummings added. “He is going to be emboldened because he’s said, ‘Well, I got away with that.’”

But even as he warned that proceedings could be forthcoming, Cummings said he is “not there yet” on impeachment—a sign of how divided Democrats remain on the issue. Jerrold Nadler, whose House Judiciary Committee would take up the matter, has left the door open to impeachment, and Adam Schiff, chairman of the House Intelligence Committee, said Sunday that House Democrats will meet in the coming weeks to debate their next move. House Majority Leader Steny Hoyer, though, has already tried to shut down chatter among the Democratic ranks: “Based on what we have seen to date, going forward on impeachment is not worthwhile at this point,” he said after the Mueller report was released last week.

That apparent reluctance by Democratic leadership could prevent impeachment from becoming a campaign issue for Trump, who has already tried to rile up his base about it on Twitter. But it could also implicitly legitimize Trump’s actions during the 2016 campaign and his behavior as president—and maybe even reinforce his aura of invulnerability, argues Jennifer Palmieri, a former top aide to Hillary Clinton and Barack Obama. “It’s a self-fulfilling prophecy,” she told The New York Times. “If you stop pursuing what Mueller is putting in front of them, of course voters aren’t going to think it’s important. Voters respond to leadership.”