Senate Republicans will hold a Thursday vote on a GOP proposal aimed at lowering health insurance premiums, even as deep disagreements roil the party. With two influential committee chairs helping craft the plan, leaders hope to tamp down rising premiums—but skeptics within the conference are voicing strong reservations.

As House moderates grapple with pivotal Medicaid decisions, the implications for millions of Americans hang in the balance. Trump’s tax bill introduces significant challenges to health care access, potentially altering the landscape of public health.