Maine Sen. Susan Collins, the Republican chair of the Senate Appropriations Committee, said she was particularly concerned about a lack of specifics from the White House.

“Nobody really knows what program reductions are in it,” Collins said. “That isn’t because we haven’t had time to review the bill. Instead, the problem is that OMB has never provided the details that would normally be part of this process.”

Sen. Lisa Murkowski, R-Alaska, said she didn’t want the Senate to be going through numerous rounds of rescissions.

“We are lawmakers. We should be legislating,” Murkowski said. “What we’re getting now is a direction from the White House and being told: ‘This is the priority and we want you to execute on it. We’ll be back with you with another round.’ I don’t accept that.”

Sen. Mitch McConnell, R-Ky., Collins and Murkowski joined with Democrats in voting against the Senate taking up the measure, but the large majority of Republicans were supportive of Trump’s request.