South Carolina U.S. Sen. Lindsey Graham tweeted Monday that he has tested positive for COVID-19.
The senator said he began having flu-like symptoms Saturday night and went to the doctor on Monday to be tested.
Graham was previously vaccinated to fight off COVID-19 months ago.
“I was just informed by the House physician I have tested positive for #COVID19 even after being vaccinated. I started having flu-like symptoms Saturday night and went to the doctor this morning,” Graham tweeted. “I feel like I have a sinus infection and at present time I have mild symptoms. I will be quarantining for ten days. I am very glad I was vaccinated because without vaccination I am certain I would not feel as well as I do now. My symptoms would be far worse.”