Senate Republicans on the Finance Committee released their version of Medicaid provisions for the budget reconciliation bill in March 2026, proposing changes that go further than the House-passed One Big Beautiful Bill in several key respects. The Senate version would require Medicaid expansion enrollees earning more than 100 percent of the federal poverty level — the majority of adult expansion enrollees — to pay cost-sharing amounts of up to per service beginning October 1, 2028. It would also require eligibility redeterminations for the expansion population every six months beginning January 1, 2027, compared to the House's every-12-month proposal. Healthcare Dive confirmed the Senate Finance provisions on March 21. NPR and PBS NewsHour covered the CBO's estimate that the reconciliation bill's Medicaid changes — across both House and Senate versions — would result in approximately 8.6 million people losing coverage over the decade.

Fox News has covered Trump's public statements on Medicaid throughout March, reporting his repeated assurances that he will not "touch" Social Security, Medicare, or Medicaid and that any changes are strictly aimed at removing fraud and waste. In a Fox News interview with Maria Bartiromo, Trump stated: "I'm not going to touch Social Security, Medicare, Medicaid. Now, we're going to get fraud out of there." ABC News reported that Trump has made similar pledges in at least 10 separate instances. The White House and Republican proponents argue that the bill's work requirements, semi-annual redeterminations, and cost-sharing provisions target fraud and ensure the Medicaid expansion population includes only genuinely eligible individuals — and that the CBO's coverage loss estimate reflects people who were improperly enrolled or who voluntarily exit due to changed circumstances.

The Senate's Rural Health Transformation Program — a billion, five-year grant program for state rural health infrastructure — was included in the Senate version as a sweetener to secure rural-state Republican votes, particularly from senators in states with high proportions of rural Medicaid enrollees. The program's inclusion reflects the political arithmetic of assembling 50 Senate votes: rural-state Republicans cannot support large Medicaid cuts without offsetting provisions that protect their constituents. KFF reported that rural areas are disproportionately exposed to the bill's Medicaid provisions because rural residents are more likely to be on Medicaid expansion, more likely to be employed in seasonal or agricultural jobs that complicate work-requirement documentation, and face fewer alternative coverage options than urban residents.

NBC News reported that the political fight over Medicaid is "escalating" as a flash point for the 2026 midterm elections, with Democrats centering the issue in competitive House districts. Republican moderates in states like Maine, Arizona, Nevada, and Alaska have expressed concern about the size of the Medicaid reduction — Senator Susan Collins of Maine was among those publicly raising questions. The divergence between Trump's repeated public pledges not to cut Medicaid and the CBO's estimate that millions will lose coverage has become a central line of Democratic attack, while Republicans maintain that removing fraud and tightening eligibility verification is categorically different from cutting benefits for people who are genuinely eligible.