And if the same thing happened with Flynn and the judge there didn’t notice or ignored it...?
The first one, Contreras, was a BFF of Peter Strzok and recused after the Strzok/Page emails came out, but not before accepting Flynn's guilty plea.
His replacement, Judge Sullivan, has come down hard on Mueller, ordering Mueller to provide Flynn with all exculpatory documents regarding the FBI interview. Sullivan has a record of being very tough on prosecutorial misconduct.