South Carolina U.S. Senator Lindsey Graham says he has tested positive for COVID-19 despite being vaccinated. 

He says the House physician informed him of the diagnosis on Monday. 

“I started having flu-like symptoms Saturday night and went to the doctor this morning. I feel like I have a sinus infection and at present time I have mild symptoms," Graham said in a written statement on Monday. 

The senator says he will quarantine for 10 days. 

Graham said he was glad he got the vaccine because without it, "I am certain I would not feel as well as I do now."

Sen. Graham's full statement:

“I was just informed by the House physician I have tested positive for COVID-19 even after being vaccinated.

“I started having flu-like symptoms Saturday night and went to the doctor this morning. 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.”