Studies have shown that millions of Americans owe a combined $220 billion in medical debt, with 1 in 5 adults saying they don’t expect to ever be able to pay off the bills. A group of congressional Democrats on Wednesday proposed knocking the amount down to zero. “People in our country should not be going bankrupt because they got cancer and could not afford to pay their medical bills,” Sen. Bernie Sanders said Wednesday in a statement. The legislation would remove the debt from credit reports and severely limit future debt from accruing, the Hill reports. The legislation would cancel existing…