A leading Democrat on the House Judiciary Committee referred to the business empire of President Donald Trump as a “criminal enterprise” on Sunday and promised to investigate allegations that he has used his White House office to enrich himself.

The Trump Organization is “a criminal enterprise that he and his family has been engaged in, to run for president and once they got the presidency they monetized it,” Tennessee Rep. Steve Cohen said in an interview with MSNBC.

“They’ve done it at Trump Tower. They’ve done it with the Trump hotels. They’ve done it with the Saudis … This is a criminal enterprise that makes Al Capone and Frank Nitti look like good guys,” he said.

Cohen said the committee will conduct hearings on the emoluments clause at the start of the new Congress in January. Emoluments violations comprise two of the five articles of impeachment that Democrats, led by Cohen, levied against President Trump in November of last year. The committee will also interrogate comments the president has made disparaging the judiciary branch, the Federal Bureau of Investigation and the press.

Those hearings on the gravity of the charges levied against Trump will be “in essence, hearings on impeachment,” Cohen said.