Do you have a link to the assessment for Michigan, why not to send supplies?
The Federal government wants to hold on to supplies until there is a need in a particular state. If they send them to Michigan just because they're being asked by them, then let's say Oklahoma need them. The feds won't have the stuff to send them and won't be able to get them back from Michigan to transfer to Oklahoma. EVery state wants to have extra supplies. That's natural to ask for them. But there isn't enough to go around.
NYS governor Cuomo did the same thing Trump did. When he got 4000 ventilators from Trump, he stored them in a NYS supply dump in Edison, New Jersey. When he was asked why then is he complaining about Trump, his answer was they're storing them until later when they really need them. So he's doing on a state level what the feds are doing on a national level.
Unfortunately, there's a lot of jockeying for political position going on right now because of the election. Getting slightly off subject. this is why I'm against national health care. Who would trust the government to really care about their health? You gotta be nuts. This whole clusterf$$k is a perfect example. The whole federal government and all of the state were not prepared. Very little time and energy and supplies were saved for a rainy day.