The doctor accused of "mercy killings" during Hurricane Katrina has filed suit against Louisiana Attorney General Charles Foti.
Dr. Anna Pou claims Foti is using her arrest to fuel his own re-election bid.
The doctor and two nurses are accused in the deaths of four patients at Memorial Hospital in New Orleans.
Charges against the nurses were recently dropped.
The doctor claims Foti made comments about the case that went beyond what he ethically should have said, and held a "fund raiser" to showcase his achievements, within a week after the doctor was arrested.
Foti has not commented on the suit.