A Justice Department official is set to probe Federal Reserve Governor Lisa Cook after she was accused by a member of President Donald Trump’s administration of committing mortgage fraud, according to a letter sent Thursday to Fed Chair Jerome Powell.

Trump on Wednesday called for economist Lisa Cook to resign from the Fed Board of Governors over allegations of mortgage fraud.

Federal Reserve governor Lisa Cook on Wednesday defied President Donald Trump’s calls for her to resign in light of accusations that she had committed mortgage fraud. Cook was appointed by former President Joe Biden to sit on the Fed,