The US Congress has passed legislation to force the public release of documents from the investigation into late sex offender Jeffrey Epstein.
The bill was backed by all senators just hours after a near-unanimous vote in the House of Representatives, and will now go to President Donald Trump for signing.
Only one Republican voted against the Epstein Files Transparency Act, and all Democrats supported it.
Its passage marks a major win for a small group of Republicans who have defied pressure from the Trump White House to drop their crusade for the Epstein files' release.
It also delivers a victory to Epstein's victims, many of whom suspect he had a powerful network of co-conspirators who have long avoided public exposure and punishment.
Some House Republicans had said they wanted the bill amended by the Senate before its passage.
House Leader Mike Johnson was among those who voted for the bill but said it needed changes to protect "innocent people" named in the files.
But the leader of the Democrats in the Senate, Chuck Schumer, used a congressional manoeuvre to have the bill approved by all senators as soon as the paperwork arrived from the House.
Senate Majority Leader John Thune told US broadcaster CNN the bill will be sent to Mr Trump for his signature on Wednesday morning, local time.
Trump says he will sign Epstein files bill
If it becomes law, the bill will compel the US Department of Justice to publish all unclassified documents relating to its investigation and prosecution of Epstein and his co-offender Ghislaine Maxwell.
Despite the near-unanimous vote, the bill has split Republicans.
Mr Trump fiercely opposed the bill for months, and he labelled longtime ally Marjorie Taylor Greene a "traitor" after she signed a petition supporting it.
On Sunday, local time, he reversed course and told Republicans to vote for the bill so they could move on from the distraction.
Shortly before the House vote, Ms Greene said the Epstein issue had "ripped MAGA apart".
"He called me a traitor for standing with these women and refusing to take my name off the discharge petition," Ms Greene said at a press conference with victims of Epstein.
"Let me tell you what a traitor is. A traitor is an American that serves foreign countries and themselves. A patriot is an American that serves the United States of America and Americans like the women standing behind me."
On Monday, Mr Trump said he would sign the bill into law if it passed Congress.
After the House vote, he said he did not care when the Senate passed it.
"I just don't want Republicans to take their eyes off all of the Victories [sic] that we've had," he wrote on social media.
Debate over releasing names to 'rabid media'
The House vote was called as a result of a "discharge petition" — a rarely used tool to force a vote on a bill.
The petition succeeded because it was signed by Ms Greene and fellow Republicans Lauren Boebert, Nancy Mace and Thomas Massie, along with all House Democrats.
After the petition's success, the House's Republican leaders called the vote under "suspension of the rules", which meant the bill required a two-thirds majority to pass.
Clay Higgins, a Republican from Louisiana, was the only House member to vote against the bill.
"As written, this bill reveals and injures thousands of innocent people — witnesses, people who provided alibis, family members, etc," he wrote on social media.
"If enacted in its current form, this type of broad reveal of criminal investigative files, released to a rabid media, will absolutely result in innocent people being hurt."
Mr Johnson raised similar concerns ahead of the vote.
But the House leader said he had spoken to Republican Senate leader John Thune, and he was confident senators would amend the bill to "make sure these protections are there".
"Everybody here, all the Republicans, want to go on record to show there's a maximum of transparency," Mr Johnson said at a press conference with some of his colleagues.
"But they also want to note that we're demanding that this stuff get corrected before it ever moves through the process and is completed."
But Senator Thune later said the overwhelming support in the House meant the Senate was unlikely to change the bill.
The bill would allow the Department of Justice to withhold the names and details of victims.
But it compels the release of "individuals named or referenced (including government officials) in connection with the investigation and prosecution".
It also instructs the department to release flight logs, and says the documents must be downloadable and searchable.
Trump a 'national embarrassment', says victim
Victims of Epstein, who spoke before the vote, said they were grateful for the bipartisan push to release the files, but angry the issue had become politicised.
Some criticised Mr Trump for refusing to release the files after promising to do so during the election campaign.
"I beg you, President Trump, please stop making this political," said Jena-Lisa Jones, who said she was abused by Epstein from age 14.
"I voted for you, but your behaviour on this issue has been a national embarrassment.
"It is time to take the honest, moral ground and support the release of these files.
"Not to weaponise pieces of the files against random political enemies that did nothing wrong, but to understand who Epstein's friends were, who covered for him, what financial institutions allowed his trafficking to continue."
Sky Roberts, the brother of late Epstein accuser Virginia Roberts Giuffre, said his sister would be "incredibly proud" of the members of Congress who pushed for the vote.
Ms Roberts Giuffre died by suicide in Australia earlier this year, but her memoir was released posthumously in October.
"This is the moment she was fighting for and the moment that all survivors are fighting for," Mr Roberts said.
Mr Massie, who introduced the bill in July, said it should be passed unchanged.
"The important thing about the Senate is that they need not to muck this bill up," he said.
Epstein was awaiting trial for sex trafficking when he died in prison in 2019, in what was ruled a suicide.
Years earlier, he had been convicted of unlawfully paying a teenager for sex, but more serious charges at that time were dropped under a plea deal.
Maxwell is serving a 20-year prison sentence for grooming, trafficking and other offences.
