Senate Republicans on Monday proposed steeper Medicaid cuts than those included in the House-passed version of President Donald Trump’s signature policy bill—making the bill’s passage by the July 4 deadline set by Congressional Republicans even more uncertain as Medicaid cuts have been a major sticking point for some in the GOP.

A new study examines the potentially fatal impacts of Medicaid cuts in the new Republican-backed spending bill.

The Senate Finance Committee on Monday released its version of the GOP’s package that calls for enacting sweeping cuts to Medicaid and preventing a multi-trillion dollar tax hike on Americans.