Before he suffered a heart attack late last year, presidential candidate Bernie Sanders made Democratic voters a promise: He said he would release his medical records in their entirety, because “the American people have the right to know whether the person they’re going to be voting for for president is healthy.”

That promise remains unmet, and it will likely stay that way, according to the Vermont senator himself. “We have released, I think … quite as much as any other candidate has,” he said during a CNN town hall on Tuesday when asked why he hadn’t released any more medical records.