Seriously, the USA could have started producing and importing respiratory safety equipment much sooner for example.
Then, as soon as the American people started flattening the curve, he urged to open up the country. Look at Florida, Texas and so on, now.
Producing? In America we have what's called "states rights" which basically means each state in responsible for itself, both state and local governments. The Federal government Is there as a "safety net" for the states that may need help. That means its the responsibility of the Governor and local officials for their own people. In the states (all Democrat ran) they were not prepared for a pandemic like they were supposed to be. All state and federal officials are supposed to have an already plan in place for such emergencies...they failed. NY and NYC being the least prepared. BUT...when asking for help from the federal Government, IE; Trump, he didn't hesitate to give them what they wanted ASAP, and what I mean by ASAP, I mean within 48-72 hrs in a lot of the cases.
This can be backed by the Dem testimonials to Trump with his rapid response. He even deployed hospital ships on both the East and West Coasts just in case.