There was actually a poll on Friday that showed 55% of respondents approved of his handling of the crisis.
This is ~13% (absolute) more than his approval rating, so a big chunk of people think his is handling this well.
That said, the GOP thinks this will impact his chance of reelection. Steve Bannon said "he's not running against Joe Biden, he’s running against a virus and the collateral damage from that." So far, the states in lockdown mode where deaths and job losses are likely were going to vote Biden anyway. If more rural states start having problems, expect a lot of swing states to swing left.
https://www.npr.org/2020/03/17/816680033/poll-americans-dont...
What we need is more of them and wider samples to reduce the ~95% error rate of the ABC results even lower. Not critiquing ones who have a well established reputation for following good methodology, as if polling never has value (FiveThirtyEight has litigated this to death and have largely won the argument).
That said, one poll is rarely ever enough.