If Scalise did not suffer nerve damage and his recovery continues without any complications, "it is possible that within three months or so, he can.be back on his feet", said Dr. Alex Jahangir, an orthopedic trauma surgeon at Vanderbilt University Medical Center, who was not involved in Scalise's care.
Sources close to the senior Republican said he remained in a critical condition.
In addition to Scalise, a police officer, a congressional aide and a lobbyist were shot on Wednesday morning when a man opened fire as the Republican lawmakers practiced for the game in the Washington suburb of Alexandria, Va.
Ticket sales picked up after Wednesday's shooting, eventually setting an attendance record, the organizers said, as attendees such as Alexander Hilten, 16, of Arlington, Va., made a decision to come to the game for the first time. The congressman's risk of death was now substantially lower because doctors have controlled the bleeding and his vital signs have stabilized.
"We're all praying for him", House Speaker Paul Ryan said during the interview right before the game, adding that Scalise's wife "Jennifer and the kids are here".
"It's been much more hard than people even thought at the time", Trump told reporters at the White House on Thursday, adding he also visited the wounded Capitol Police officer at the hospital. Hodgkinson was eventually killed by Capitol police.
"They saved a lot of lives", the president said.
Thursday's Congressional Baseball Game for Charity, a century-old tradition for which Scalise was practicing, combines them.
A Democrat ally of Steve Scalise asked for better protection for himself and his fellow lawmakers a week before the House of Representatives Majority Whip was left fighting for his life after Wednesday's shooting at a Congressional baseball practice. President Trump said concern for the congressman "may have brought some unity to our long-divided country".
Vice President Mike Pence earlier on Thursday said he visited the hospital where Scalise was being treated.
Another Capitol Police officer, Crystal Griner, was shot in the ankle and remains hospitalized.
Shooter James Hodgkinson of Belleville, Ill., was shot and died later Wednesday of his wounds in the hospital.