The founders of GPS Fusion, the research firm responsible for a dossier that contains salacious details about President Trump, defended themselves against Republicans and right-leaning news media spreading “mendacious conspiracy theories” about their motives.

Glenn Simpson and Peter Fritsch, in an op-ed in the New York Times on Wednesday, accused the Trump White House and his GOP supporters in Congress of trying to smear them by “selectively leaking” portions of their congressional testimony to conservative media outlets to discredit them as “unwitting victims of Kremlin disinformation.”

The two said it’s time for Republicans to “stop chasing rabbits” and release their full testimony “so that the American people can learn the truth about our work and most important, what happened to our democracy.”

Simpson and Fritsch also shot back at Republican critics who, while trying to discredit the probe into Russian election interference by special counsel Robert Mueller, say the dossier partially funded by Hillary Clinton’s campaign instigated his investigation.

They said they don’t believe the unsubstantiated claims in the dossier, compiled by former British intelligence agent Christopher Steele, were the “trigger for the FBI’s investigation.”

“As we told the Senate Judiciary Committee in August, our sources said the dossier was taken so seriously because it corroborated reports the bureau had received from other sources, including one inside the Trump camp,” the two wrote in the op-ed.

They also said congressional committees were aware for months that “credible allegations of collusion” between Trump campaign associates and Moscow were being raised during the 2016 election but they ignored them.

“Yet lawmakers in the thrall of the president continue to wage a cynical campaign to portray us as the unwitting victims of Kremlin disinformation,” they wrote.

Last month, the New York Times reported that the FBI launched the Russia probe after former Trump campaign foreign policy adviser George Papadopoulos told an Australian diplomat in May 2016 that Russia had “dirt on Hillary Clinton.”

Australian officials reached out to the FBI two months later.

Papadopoulos pleaded guilty to making false statements to FBI agents about his connection to foreigners with connections to Russian officials. He is cooperating with Mueller’s probe.

They admitted hiring Steele, “but we did so without informing him whom we were working for and gave him no specific marching orders beyond this basic question: Why did Mr. Trump repeatedly seek to do deals in a notoriously corrupt police state that most serious investors shun?”

They wrote that what Steele claimed in the dossier “shocked us.”

“Mr. Steele’s sources in Russia (who were not paid) reported on an extensive — and now confirmed — effort by the Kremlin to help elect Mr. Trump president. Mr. Steele saw this as a crime in progress and decided he needed to report it to the F.B.I.,” Simpson and Fritsch wrote.