I'm going to ask this in a sincere hope of getting an answer, regardless of how flip it sounds: What specifically did Trump fail to do that you feel he should

I'm going to ask this in a sincere hope of getting an answer, regardless of how flip it sounds: What specifically did Trump fail to do that you feel he should have done with regard to Covid? Keeping in mind that the US is a constitutional republic and does not have a lot of the same legal tools to compel people to do things en masse that other nations do.