Former New Jersey Gov. Chris Christie says he’s checked himself into a hospital, hours after confirming he had tested positive for the coronavirus.

Christie tweeted today that after consulting with his doctors, he went to Morristown Medical Center on Saturday afternoon. He said he’s only experiencing mild symptoms.

“Due to my history of asthma, we decided this is an important precautionary measure,” he tweeted.

Christie, who has publicly struggled with his weight, is the latest in a string of virus cases connected to President Donald Trump’s inner circle.

In consultation with my doctors, I checked myself into Morristown Medical Center this afternoon. While I am feeling good and only have mild symptoms, due to my history of asthma we decided this is an important precautionary measure.

— Governor Christie (@GovChristie) October 3, 2020

Trump’s former 2016 rival told The Associated Press on Friday that the last time he was with the president was Tuesday in Cleveland during preparations for his debate with former Vice President Joe Biden.

Christie had tweeted Friday morning that he had last tested negative ahead of Tuesday’s debate and was not having any symptoms then.

In 2013, during Christie’s first term as New Jersey governor, he underwent lap-band surgery and lost a significant amount of weight. Two years before that, he was hospitalized for difficulty breathing. The 58-year-old uses an inhaler.

He once called himself “the healthiest fat guy you’ve ever seen.”

Text messages were left seeking comment from Christie early Saturday evening.

In addition to Trump and first lady Melania Trump, multiple people who have traveled with the president or attended events with him over the last several days have contracted the virus.