By Phil Galewitz, KFF Health News Under President Joe Biden, enrollment in Medicaid hit a record high and the uninsured rate reached a record low. Related Articles National Politics | Trump offered a bountiful batch of campaign promises that come due on Day 1 National Politics | Biden warns the US risks becoming an ‘oligarchy.’ What does the term mean? National Politics | Douglas County commissioners unanimously support Trump’s immigration plans, deportations National Politics | Watch: Pete Hegseth confirmation hearing replay National Politics | Hegseth confronts allegations of misconduct as senators grill Trump’s choice for Pentagon chief Donald Trump’s return to the White House — along with a GOP-controlled Senate and House of Representatives — is expected to change that. Republicans in Washington say they plan to use funding cuts and regulatory changes to dramatically shrink Medicaid, the nearly $900-billion-a-year government health insurance program that, along with the related Children’s Health Insurance Program, serves about 79 million mostly low-income or disabled Americans. The proposals include rolling back the Affordable Care Act’s expansion of Medicaid, which over the last 11 years added about 20 million low-income adults to its rolls.