They all knew, used it anyway and didn’t tell the FISA court.
Via The Hill:
When the annals of mistakes and abuses in the FBI’s Russia investigation are finally written, Bruce Ohr almost certainly will be the No. 1 witness, according to my sources.
The then-No. 4 Department of Justice (DOJ) official briefed both senior FBI and DOJ officials in summer 2016 about Christopher Steele’s Russia dossier, explicitly cautioning that the British intelligence operative’s work was opposition research connected to Hillary Clinton’s campaign and might be biased.
Ohr’s briefings, in July and August 2016, included the deputy director of the FBI, a top lawyer for then-Attorney General Loretta Lynch and a Justice official who later would become the top deputy to special counsel Robert Mueller.
At the time, Ohr was the associate attorney general. Yet his warnings about political bias were pointedly omitted weeks later from the Foreign Intelligence Surveillance Act (FISA) warrant that the FBI obtained from a federal court, granting it permission to spy on whether the Trump campaign was colluding with Russia to hijack the 2016 presidential election.