A bipartisan housing bill that recently secured overwhelming support in both chambers of Congress faced an unexpected setback on Wednesday when President Donald Trump announced he would withhold his backing. The move came just 90 minutes before a planned signing ceremony and caught many Republican lawmakers and White House staff off guard.

The legislation, designed to promote home construction through several targeted reforms, had passed the Senate 85-5 on Monday and the House 358-32 on Tuesday, both with veto-proof margins. Its measures include expediting environmental reviews for certain housing developments, eliminating federal restrictions on manufactured homes to reduce costs, and easing banking regulations to encourage investment in affordable housing and community development projects.

Despite these provisions, President Trump conditioned his support on Congress passing the Save America Act, a federal election law overhaul that currently faces significant opposition in the Senate due to the filibuster. This linkage disrupted progress on an otherwise broadly supported housing initiative.

Key elements of the bill aim to address supply constraints at the local level, where zoning and building codes often limit development. The bill introduces a competitive grant program designed to incentivize local governments to streamline permitting processes and increase housing density. However, critics note that the legislation does little to curtail federal subsidies that can inadvertently drive up housing prices.

The package also includes a provision limiting institutional investors to owning no more than 350 single-family homes, a measure based on concerns—considered by some experts to be unfounded—that corporate ownership exacerbates housing shortages. Negotiators notably removed a more restrictive proposal championed by Senator Elizabeth Warren that would have discouraged such investors from participating in build-to-rent developments, which could have reduced the availability of new housing units.

Overall, the bill was seen as a modest but positive step forward by housing advocates and local officials seeking to reduce barriers to development across the country. Its passage was viewed as a signal that lawmakers are addressing affordability issues ahead of upcoming midterm elections.

Though the president’s veto threat complicates the bill’s prospects, there remains the possibility that Trump may reverse course and sign the legislation within the next 10 days. Should he maintain opposition, Congress could attempt to override the veto, a move that would reflect Republican willingness to prioritize housing policy amid political considerations.