Republicans suffered a blow Thursday after the Senate referee ruled that a series of health care cuts and savings in their sweeping domestic policy bill are ineligible for the party-line path they're using to get around the chamber's 60-vote threshold.

The Senate parliamentarian has advised that a Medicaid provider tax overhaul central to President Donald Trump's tax cut and spending bill does not adhere to the chamber's procedural rules, delivering a crucial blow as Republicans rush to finish the package this week.