This is bipartisan. I remember when Obama continued to send military aid to Egypt DURING their military coup, which is also illegal under US law. No one gave a shit.
Yokels all over rural America were up in arms over the idea that their jobs producing small but integral parts of a weapons system that would eventually go to a strongman using force to stay in power might dry up. No politician will ever dare threaten to damage the military-industrial complex for economic reasons alone.