One of the most powerful health care industry lobbying groups has poured hundreds of thousands of dollars into the campaign to reelect Democratic representative Richard Neal as he blocks legislation to crack down on “surprise medical bills” and thwarts the push for Medicare for All.

The American Hospital Association’s (AHA) political action committee has spent more than $200,000 on digital ads to boost Neal’s reelection campaign as he faces a spirited primary challenge, according to campaign finance records.

AHA is one of the most powerful forces in Washington, DC, working to keep health care costs outrageously high. The trade group, which represents more than five thousand hospitals and brings in more than $130 million annually, has lobbied against reforms to end surprise medical billing, against plans requiring hospitals to make their prices public, and against the single-payer Medicare for All proposal to eliminate for-profit health insurance.