Having worked at companies that supplied repair and maintenance spares, I can attest spares and repair parts are the first things that get cancelled whenever a Democrat comes into office. The move the money into other things.
When Bush II was elected his office called all the CEO’s directly and asked them to go to 24 hour shifts. They said they’d talk price when Bush actually got into office. Bush came through and paid the bills. It is now against the law to build anything the military has not previously approved.
Exactly - aircraft availability is directly proportional the the service’s budget and major expenses for new toys (like the useless F-35).
When I was in Air Force aircraft maintenance we could fix damn near anything at the home base level, IF we had the parts.