Concern about patients spending too much of their own money on health care has driven the debate over repealing and replacing Obamacare. But the latest Senate Republican health bill does little to address those fears and may exacerbate them.

The bill, rolled out anew on Thursday after a raft of Republican defections threatened to sink the original legislation, faces a narrow road to passage despite alterations aimed at winning over lawmakers who balked at the earlier draft. Two Republican Senators signaled their opposition; a third dissent could doom the measure, and a long-held GOP vow to overturn the Affordable Care Act.

Among other changes, including some specifically targeted at wavering GOP moderates, the bill now provides more money to states to help cover some patient costs, and sets up a $45 billion fund for treating opioid addiction.