Yes, that's what Trump did bad and sometimes keep doing it bad. Still better option, if you consider all parameters.
Mistake believing in WHO when it said counter factual and counter intuitive, that facemask were not necessary. And another mistake, by keep not trusting original sources from covid-19 investigation, and doing nothing to stop negationism on citizens.
With all of this, USA is still not the worst country in the world fighting covid-19.
https://www.ncov2019.live/
Order deaths per million.
1. Peru
2. Belgium
3. Spain
4. Bolivia
5. Brazil
6. Chile
7. Ecuador
8. United States
9. United Kingdom
10. Italy
11. Sweden
12. Mexico
13. Panama
14. France
Like many other western countries Donald Trump trusted WHO, and trusted wrong experts which have NO direct relationship with the disease, some of these related with, WHO, which said face mask were not necessary. But they were. What's worse, many people believed that they had to do less than what the WHO recommended. Social distancing is a LIE.
Main responsiblefor all deaths is the WHO. Because as a world health authority they cannot say data against facts that unprotect the population.
What did Trump do good about this, he has stopped funding this corrupt organization. But, still what it need is to look for real experts who work with the subject closely.