The decision left officials on both sides of the Atlantic scrambling to find out how long the pause might last.

While there is no direct evidence that the Ukraine weapons freeze caused the bill’s failure, social media users, including analysts, speculated that Brian Fitzpatrick might be opposing the bill due to his frustration with the weapons decision. Read More: Bill Beautiful Bill House vote: What happens if there's a tie? Can Mike Johnson pass the bill?

Among the halted supplies are Patriot air defence systems, artillery rounds, and missiles used by Ukrainian forces in US-made F-16 jets, according to Pentagon officials. These systems have been instrumental in helping Ukraine resist intensified Russian attacks over the past few months.