Have they, though? You've said this a few times. How have they done a good job?
Looking at the numbers their "total cases" curve has flattened very slightly. The deaths one maybe a tiny bit.
https://www.worldometers.info/coronavirus/country/us/
And there are still a LOT of active cases so it's a bit early to conclude much just yet. I'm interested to know how you think they've done a good job.
Last I heard there was no country-wide policy on social distancing or lockdown so each governor was making up their own policies which led to a very scatter-gun approach across the country.