The Bidenistas killed the deal because the Poles refused to play their assigned role as cat’s paw. The whole schtick was about getting the Ukrainians more jets without US fingerprints on the deal, but whoever ponied up the airplanes directly would immediately go on Putin’s target list.
Poland said eef that! You want us to supply the jets, fine! We’ll give them to you, and YOU can give them to Ukraine — providing you provide replacements with similar capabilities. We’re not going to be left holding the bag.
Poland also added the condition that other NATO members give planes too. They were not going to go this alone. Period. THAT'S how little they trust us to back them up.