Hospital and insurance companies that have benefited from the Affordable Care Act’s expansion of Medicaid coverage saw a sharp fall in their stock prices on fears a Trump administration could roll back that expansion.

Millions of low-income Americans on Medicaid could lose their health coverage if President-elect Donald Trump and a Republican-controlled Congress follow through on GOP proposals to cut spending in the state-federal insurance program.

California has a lot to lose if President-elect Donald Trump and the Republican-led Congress fulfill their campaign pledge to repeal Obamacare.

Millions of Californians have gained health insurance under the Affordable Care Act. Now the future of that federal law – and medical coverage for those people -- is in doubt. President-elect Donald Trump said repeatedly during his campaign that one of his first acts would be to “repeal and replace” the law known as Obamacare.

President-elect Donald Trump and congressional Republican leaders are promising to make repeal and replacement of the Affordable Care Act one of their highest priorities in the first 100 days after they take full control of the federal government in January.

Just days after a national campaign in which he vowed repeatedly to repeal President Obama’s signature health care law, Donald J. Trump is sending signals that his approach to health care is a work in progress.