Democrats were on board with including billions in humanitarian aid for the U.S.-Mexico border but had left Immigration and Customs Enforcement (ICE) funding out of their previous offers because it's considered a non-starter for the caucus. Republicans, meanwhile, were accusing Democrats of trying to use the disaster bill to impose new immigration-related restrictions on the administration.

Immigration has emerged as a lightning rod issue during the Trump administration, with both chambers rejecting multiple immigration and border proposals since 2017 and under pressure from their bases to draw red lines for any agreement.

A senior Democratic aide added on Thursday that Democrats secured language in the disaster aid agreement to prohibit the new funding in the package from being transferred to things that were not specifically appropriated for, including the president’s wall.

But Shelby indicated that appropriators would circle back to the president's request once Congress returns to Washington in June.

ADVERTISEMENT "We took it all out … [but] we're going to try to push that separately when we come back," Shelby said. "It's needed, but we're sticking with disaster now." Trump, asked about the disaster aid bill, told reporters during a farm aid event that he had been told he would get the immigration-related funding later. "We’re going to get the immigration money later, according to everybody. I have to take care of my farmers with the disaster relief. If I didn’t do that — I mean, really, it’s a long time in coming," Trump said. Trump added, "We'll take care of the immigration later. The wall is being built.” Shelby told reporters that he told Trump that the Senate would take back up his emergency funding request in June, with Majority Leader Mitch McConnell (R-Ky.) likely to bring it straight to the floor. If the chamber is going to pass a bill granting additional border money it will take 60 votes, including support from Democrats. Aides had indicated on Thursday morning that immigration was still a sticking point that was making it difficult to get to an agreement.

“We're incredibly disappointed that Speaker Pelosi is going to gavel out today without addressing disaster relief. We've been trying for months to get help to our farmers, to families who've been suffering, and there was a lot of effort made to try to get an agreement done before we left,” he told reporters.