At least three U.S. lawmakers said on Tuesday healthcare providers were blocked from the Medicaid payment portal after the Trump administration announced a federal funding pause, even as the White House said the program was exempted.

President Donald Trump‘s administration sought to tamp down confusion over Medicaid funding in the wake of Office of Management and Budget director Matthew Vaeth’s memorandum pausing federal grant funding.

The White House budget office on Wednesday rescinded an order freezing federal grants, according to a copy of a new memo obtained by The Washington Post, after the administration’s move to halt spending earlier this week provoked a backlash.