A key member of Elon Musk's Department of Government Efficiency has met with leadership at the Centers for Medicare & Medicaid Services, the federal agency that oversees the nation’s Medicare and Medicaid insurance programs, according to internal records reviewed by ABC News.

Donald Trump said he would "love and cherish" Medicaid. He's endorsed a House GOP proposal that would likely gut the program.

Fourteen states led by New Mexico sued the Department of Government Efficiency, or DOGE, on Thursday challenging the alleged “unlawful delegation of executive power to Elon Musk” they say has unraveled federal agencies and “caused widespread disruption”—as criticism of Elon Musk’s increasingly powerful agency builds.

Presented by American Medical Association{beacon} Health Care Health Care   The Big Story Democratic urge Musk to keep ‘hands off’ Medicare, Medicaid More than 30 Democratic

As Musk and his critics toss around statistics, here are some points to know about how the government spends $6.8 trillion taxpayer money

Mario Villalpando, President of MarioCare, explains Medicare enrollment, penalties, and the different parts of Medicare. #PaidForContent

Elon Musk waved a chainsaw gifted by Argentina’s President Milei at the CPAC, symbolizing government spending cuts.

Elon Musk said his Department of Government Efficiency team is working toward cutting $1 trillion from the federal budget. PolitiFact looks at how