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WATCH: Obama campaigns for Biden in Orlando

Former President Barack Obama mocked President Donald Trump’s response to the coronavirus pandemic, saying Trump “turned the White House into a hot zone.”

Watch Obama’s remarks in the video player above.

Trump and a number of his aides recently tested positive for COVID-19, and this week, five of Vice President Pence’s aides tested positive, too.

“I lived in the White House for a while,” Obama said. “It’s a controlled environment. You can take some preventive measures in the White House to avoid getting sick. Except this guy can’t seem to do it.”

Addressing a drive-in audience in Orlando, Florida, Obama declared the 2020 race for the White House to be “the most important election of our lifetimes,” and slammed the president on numerous fronts, especially the death toll and economic toll of COVID-19.

“More than 225,000 people in this country are dead,” Obama said.

“More than 100,000 small businesses have closed. Half a million jobs are gone in Florida alone. Think about that.”

Obama also mocked Trump for a recent New York Times story indicating Trump paid as little as $750 per year in federal taxes after he was elected president.

And he said Democratic nominee Joe Biden “has concrete plans, and he’s got concrete policies that will turn our vision of a better, fairer, stronger country into a reality.”