Cook responded to Pulte in a statement, "I have no intention of being bullied to step down from my position because of some questions raised in a tweet."

Bill Pulte, director of the agency that oversees mortgage giants Fannie Mae and Freddie Mac, urged the Justice Department to investigate Federal Reserve governor Lisa Cook.

Fed governor Lisa D. Cook is being accused of mortgage fraud by Bill Pulte, who serves as Trump’s director of the Federal Housing Finance Agency.