The president, who for years has lashed out against a "political witch hunt" from a place of fear and uncertainty, showed Monday he will now wield the findings with confidence. And his critics in both parties, who toyed with the idea that Trump conspired with a foreign power to win the presidency, were knocked on their heels.
The new political reality governing the 2020 campaign, temporarily at least, settled in a day after Attorney General William Barr released his summary of Mueller's conclusions. Barr said Mueller found no evidence that Trump or his associates conspired with Russia. Mueller did not make a determination on whether Trump obstructed justice, but Barr said he reviewed the evidence and found it insufficient to determine criminal wrongdoing.
Although the disclosure was nuanced, Trump's response was not. The president and his allies declared complete vindication, signaling they intend to use the report to bludgeon rivals and energize Trump's supporters. Trump's Republican campaign circulated a list of Democrats who have accused Trump of collusion and asked television networks to challenge them on air. Some Trump defenders called on the president's outspoken critics to apologize.
"For more than two years, angry Democrats — disgruntled and unable to accept the results of the 2016 election — falsely claimed to have evidence of crimes that did not exist and launched a political witch hunt," said Katrina Pierson, a senior adviser to Trump's re-election campaign.
"Democrats have lost the trust of the American people because now Americans know they have been manipulated," Pierson continued. The 2020 Democratic presidential contenders largely responded by calling for the release of the full report but said little more.
None in the crowded Democratic field had embraced Russian collusion or impeachment as a central campaign issue. Yet the possibility that Trump colluded with the Russians or engaged in other criminal behavior has become a constant undercurrent in Democratic politics.
Sen. Elizabeth Warren of Massachusetts told Iowa voters in February that Trump might be in prison by 2020. Sen. Cory Booker of New Jersey suggested that Trump might not be the Republican presidential nominee because "he's got some rocky roads ahead of him."
Such notions got far less likely Sunday. Democrats in Congress say they will push for the release of the full Mueller report. They also will continue investigating Trump's personal and professional life before and after he became president.
For some 2020 contenders, a flicker of hope remained that the full Mueller report — and perhaps related evidence — would reveal wrongdoing by the president. But among others, there was a greater sense that the investigation blitz could overshadow their policy promises. With each new high-profile hearing or subpoena battle, the party risks affirming Trump's accusation that Democrats are on a "witch hunt."
"It's important that they make it clear to the public that they are fulfilling their responsibility and obligation to provide oversight and accountability and doing it in a way that's in the public interest and not merely a partisan enterprise," said Democratic pollster Geoff Garin.
Mueller's initial findings also mark a setback — in the short term, at least — for those few Republicans considering mounting a primary challenge against Trump. While the president is unlikely to lose a primary election, his team feared that a credible challenge could weaken him politically ahead of the general election.
Maryland Gov. Larry Hogan and former Ohio Gov. John Kasich are openly contemplating bids. Kasich adviser John Weaver was incredulous that Mueller cleared Trump of collusion. "When a campaign manager gives a Russian agent polling data, what is that?" Weaver asked, referring to Mueller's allegations that former Trump campaign chairman Paul Manafort shared Trump campaign polling with a business associate tied to Russian intelligence.
"He doesn't have the Mueller threat any longer," Weaver continued. "But politically, I don't see this changing anybody's viewpoint." Another prospective primary challenger, former Massachusetts Gov. Bill Weld, sought to downplay the impact of the Mueller report during an appearance in New Hampshire on Monday, but shifted the conversation quickly away from Trump toward his own record.
"The conclusion is, no, the president was not guilty of a criminal conspiracy with Russia in order to obtain his own election," Weld said with a laugh. "I'm glad the answer was no instead of yes. It would not have been a great day for the United States if the answer to that had been yes."
It's unclear how long the new political dynamic will last. Political strategists in both parties note that things could change quickly if the full report — or the findings of unrelated criminal investigations — is released. And voters in the Trump era have notoriously short attention spans.
"If you measure things in 24-hour increments, yes, the president's had a good 24 hours," said political strategist Matthew Dowd. "I think they're over-celebrating. This is always a problem with the president and his people. They take it five steps too far."
Democrats may find it difficult to walk a fine line as well. The challenge was on display Sunday in Nevada where Democratic contender Beto O'Rourke, who has called for impeachment, was campaigning as the Mueller news was breaking. He didn't have a chance to read the summary before taking the stage.
"The single greatest thing that we can do to meet the threat of Russia is to defeat Donald Trump in November of 2020," O'Rourke said. "We'll soon know what's in the Mueller report. But what we know is this president, when he was a candidate for the office, sought to collude with a foreign power that was trying to undermine our democracy."
O'Rourke, through a spokesman, said he would not apologize on Monday when asked by The Associated Press. "Beto firmly stands behind his comments on President Trump's unprecedented and unacceptable conduct," O'Rourke spokesman Chris Evans said, citing the president's repeated attempts to downplay Russia's involvement in the 2016 election, among other concerns.
Associated Press writers Hunter Woodall in Concord, N.H., and Elana Schor in Washington contributed to this report.