President Trump has threatened to end government payments to health insurers if Republican lawmakers don’t pass a plan to repeal and replace the Affordable Care Act. On Saturday, Trump tweeted, “If a new HealthCare Bill is not approved quickly, BAILOUTS for Insurance Companies and BAILOUTS for Members of Congress will end very soon!” Experts say withholding these payments would cause premiums to skyrocket, and force insurers out of the market. Trump also tweeted, “Unless the Republican Senators are total quitters, Repeal & Replace is not dead! Demand another vote before voting on any other bill!”

Trump’s tweets came as hundreds of activists gathered for more than 100 rallies across the U.S. to celebrate the Republicans’ failure to pass their healthcare plan last week. This is Meghana Rao, an OB-GYN at Johns Hopkins Hospital, speaking at the rally in Washington, D.C.

Meghana Rao: “As an OB-GYN caring for the women of Baltimore, I have seen, time and time again, how essential the Affordable Care Act has been in improving the health of our community. The ACA has saved countless lives, plain and simple. Before passage of the ACA, I saw far too many women in the emergency room due to a simple lack of access to healthcare. I have cared for a 22-year-old first-time mother who discovered that she was now rejected from health insurance since she was considered a pre-existing condition for simply having had a C-section.”