Sen. Joe Manchin (D-W.Va.) said Monday that he tested positive for COVID-19.

“This morning I tested positive for COVID-19,” Manchin, 74, wrote on Twitter.


“I am fully vaccinated and boosted and am experiencing mild symptoms. I will isolate and follow CDC guidelines as I continue to work remotely to serve West Virginians.”


Manchin is the latest in a string of senators to test positive, as well as President Biden.


Democrats’ dilemma: If other Democrats test positive next week, it could pose an obstacle for passing a health care measure that would lower prescription drug prices and continue enhanced financial assistance under the Affordable Care Act. Manchin is a key vote on the measure in a Senate split evenly between the two parties.


Sens. Tom Carper (D-Del.) and Tina Smith (D-Minn.) also tested positive last week.

Manchin could be out of isolation after five days, according to Centers for Disease Control and Prevention guidelines, if his symptoms are improving.