Fewer Americans are putting off doctor visits or struggling with medical bills, according to a new report examining the effect of the Affordable Care Act.

The report – based on a state-by-state survey of data collected by the federal government – provides powerful new evidence that insurance gains made through the 2010 healthcare law are helping millions of patients get needed medical care.

And the report’s findings, which parallel a growing body of research into the law’s effect, undercut arguments by the Trump administration and congressional Republicans who have tried to discredit and roll back the law.