WASHINGTON (AP) — President Joe Biden’s top budget official warned in stark terms Friday about the rapidly diminishing time that lawmakers have to replenish U.S. aid for Ukraine, as the fate of that money to Kyiv remains tied up in negotiations over immigration where a deal has so far been out of reach.

Shalanda Young, the director of the Office of Management and Budget, stressed that there is no avenue to help Ukraine aside from Congress approving additional funding to help Kyiv as it fends off Russia in a war that is now nearly two years old. While the Pentagon has some limited authority to help Kyiv absent new funding from Capitol Hill, “that is not going to get big tranches of equipment into Ukraine,” Young said Friday.