This is true nationwide, but also particularly in states like Florida and Arizona. There was a several week lag between the large rise in cases we saw in early June and the rise in deaths that seems to clearly be happening now. Look at the graphs on the link with 7 day moving averages.
We have probably gotten better at treating this, but it seems certain that we are still going to see many more deaths in the coming weeks. I don't think that can be denied now.
Link: https://www.worldometers.info/coronavirus/country/us