Has there ever been a more lopsided multibillion-dollar case than the Federal Housing Finance Agency’s fraud litigation against the banks that sold mortgage-backed securities to Fannie Mae and Freddie Mac? I don’t think U.S. District Judge Denise Cote of Manhattan, who is overseeing securities fraud suits against 11 banks that haven’t already settled with the conservator for Fannie and Freddie, has sided with the banks on any major issue, from the timeliness of FHFA’s suits to how deeply the defendants can probe Fannie and Freddie’s knowledge of MBS underwriting standards in the late stages of the housing bubble. But even in that context, Judge Cote’s summary judgment ruling Monday – gutting the banks’ defenses against FHFA’s state-law securities claims – is a doozy.