The US has become the first country in the world to record more than 2,000 coronavirus deaths in a single day.
Figures from Johns Hopkins University show 2,108 people died in the past 24 hours while there are now more than half a million confirmed infections.
The US could soon surpass Italy as the country with the most coronavirus deaths worldwide.
But experts on the White House Covid-19 task force say the outbreak is starting to level off across the US.
Dr Deborah Birx said there were good signs the outbreak was stabilising, but cautioned: "As encouraging as they are, we have not reached the peak."
President Donald Trump also said he expects the US to see a lower death toll than the initial predictions of 100,000 fatalities, adding: "We're seeing clear signs that our aggressive strategy is saving countless lives".