FBI and CIA sources told a Pulitzer Prize-winning Washington Post reporter that they didn't believe a key claim contained in the "Steele Dossier," the document the Obama FBI relied on to obtain a surveillance warrant on a member of the Trump campaign.

The Post's Greg Miller told an audience at an October event that the FBI and CIA did not believe that former longtime Trump attorney Michael Cohen visited Prague during the 2016 election to pay off Russia-linked hackers who stole emails from key Democrats, reports the Daily Caller's Chuck Ross.

"We’ve talked to sources at the FBI and the CIA and elsewhere — they don’t believe that ever happened," said Miller during the October event which aired Saturday on C-SPAN.

We literally spent weeks and months trying to run down... there's an assertion in there that Michael Cohen went to Prague to settle payments that were needed at the end of the campaign. We sent reporters to every hotel in Prague, to all over the place trying to - just to try to figure out if he was ever there, and came away empty. -Greg Miller

Ross notes that WaPo somehow failed to report this information, nor did Miller include this tidbit of narrative-killing information in his recent book, "The Apprentice: Trump, Russia, and the Subversion of American Democracy."

Miller also admits that the dossier's broad claims are more closely aligned with reality, but that the document breaks down once you focus on individual claims.

Steele, using Kremlin sources, claimed in his dossier that Cohen and three associates went to Prague in August 2016 to meet with Kremlin officials for the purpose of discussing "deniable cash payments" made in secret so as to cover up "Moscow's secret liaison with the TRUMP team."

Cohen’s alleged Prague visit captured attention largely because the former Trump fixer has vehemently denied it, and also because it would seem to be one of the easier claims in Steele’s 35-page report to validate or invalidate. Debate over the salacious document was reignited when McClatchy reported April 15 that special counsel Robert Mueller had evidence Cohen visited Prague. No other news outlets have verified the reporting, and Cohen denied it at the time. Cohen last denied the dossier’s allegations in late June, a period of time when he was gearing up to cooperate with prosecutors against President Donald Trump. Cohen served as a cooperating witness for prosecutors in both New York and the special counsel’s office. -Daily Caller

Cohen's attorney and longtime Clinton pal Lanny Davis vehemently denied on August 22, one day after Cohen pleaded guilty in his New York case - that Cohen had ever been to Prague, telling Bloomberg "Thirteen references to Mr. Cohen are false in the dossier, but he has never been to Prague in his life."