"He is in stable condition" at a Washington hospital after being shot in the hip, the office of Steve Scalise, the number three Republican in the House of Representatives, said in a statement.
"Prior to entering surgery, (Scalise) was in good spirits and spoke to his wife by phone," it added.
Scalise, 51, was shot by an unknown man armed with a rifle during the practice of the a Republican baseball team at a field in Alexandria, Virginia early Wednesday.
Scalise was flown from the scene by helicopter to Medstar Washington Hospital Center.
MSNBC, citing officials at George Washington University Hospital, where some of the other victims were taken, said two were in critical condition.
Get Breaking news, live coverage, and Latest News from India and around the world on NDTV.com. Catch all the Live TV action on NDTV 24x7 and NDTV India. Like us on Facebook or follow us on Twitter and Instagram for latest news and live news updates.