The SAVE America Act, a far-reaching Republican election overhaul that President Trump said should be his congressional allies’ top priority, has officially failed in the Senate.

The measure was voted on Thursday as an amendment as part of lengthy debate over an immigration funding package. The election bill has languished in the Senate for months, after the House passed a version in February on a near party-line vote.

The election proposal would have taken effect immediately, even as voting is underway in congressional primaries.

The act would have also required all voters to show photo identification to cast a ballot. And it would have mandated that all states submit their voter lists to a Department of Homeland Security tool that has been found to erroneously flag U.S. citizens.