Joe and Jill Biden have tested negative for coronavirus, the presidential candidate revealed on Twitter Friday morning.

The former Vice President was checked for the virus after potentially being exposed during Tuesday’s presidential debate. President Donald Trump announced Friday that he and First Lady Melania Trump had tested positive for COVID-19. On Friday afternoon, the president was taken to the Walter Reed National Military Medical Center for treatment.

In his announcement, Trump said “We will get through this TOGETHER!” Sean P. Conley, the President’s physician, said that the Trumps “are both well at this time.”

On Friday, Biden tweeted that he wished Trump “a swift recovery.”

Vice President Mike Pence has tested negative for the virus. President Trump was likely exposed after Hope Hicks, a top communications aide, came down with symptoms of COVID-19. Both President Trump and Biden are in their 70s, a demographic that puts them at a higher risk of COVID-19 complications. President Trump is also clinically obese, which could complicate his recovery. Trump has downplayed the risk of the coronavirus, pushed for schools and businesses to reopen and suggested that the country is turning a corner in its battle against the disease. In pre-recorded remarks at the Al Smith Dinner on Thursday, President Trump said, “I just want to say that the end of the pandemic is in sight, and next year will be one of the greatest years in the history of our country.”

More than 200,000 Americans have died of coronavirus and more than 7 million have been infected. Polls have shown Biden with a consistent national lead over the Trump, but a tighter race in key battleground states that could determine the electoral college winner.