Vermont U.S. Sen. Bernie Sanders said Wednesday he is prepared to pursue contempt charges against Steward Health Care CEO Ralph de la Torre if he fails to show up at a hearing Thursday despite being issued a subpoena.

Sanders said de la Torre needs to answer to the American people about how he was able to reap hundreds of millions of dollars while Steward Health Care, which operated about 30 hospitals nationwide, had to file for bankruptcy in May.

“This is something that is not going to go away,” Sanders told The Associated Press. “We will pursue this doggedly.”