Ron Johnson (R-Wisconsin) who seeks deeper spending cuts, Josh Hawley (R-Missouri) who sees Medicaid co pay for able bodied at 100% of federal poverty level as a "sick tax," Lisa Murkowski who differs on taxing providers, and other Congressmen and Women in the Republican party are opposing the new tax cut package of president Trump. Senator Rand Paul (R- Kentucky opposes the raising of the debt ceiling, and is also opposed.
Most of the main Medicaid cuts come after 2029 after Trump no longer is president, so that Republicans who want to see the shrinking of the Medicaid program so it meets only needs of the most needy, want to see faster cuts while Trump is president. And there are other Republicans in Congress who face tight elections and see big risks of losing their seats.