Twelve months on from that very tweet, more than 225,000 Americans have died of Covid-19, and over 8 million have been infected from a virus whose threat to public health has been downplayed by Donald Trump, the US president.
Only this week, former president Barack Obama mentioned a "pandemic playbook” his administration left for Mr Trump upon leaving the White House.
"We literally left this White House a pandemic playbook," Mr Obama said during a Biden campaign rally. "They probably used it to prop up a wobbly table somewhere.""
Running a country covers lots of responsibilities, not just treating the presidency like a Big Brother reality show.