"We are bringing our country back," Mr Trump said during a visit to a mask-manufacturing factory in Arizona.
New confirmed infections per day in the US currently top 20,000, and daily deaths exceed 1,000.
US health officials warn the virus may spread as businesses begin to reopen.
The US currently has 1.2 million confirmed coronavirus infections and more than 70,000 related deaths, according to Johns Hopkins University.
What did President Trump say?