The hospital said Scalise was struck by a single rifle shot to the left hip that went through his pelvis, "fracturing bones, injuring internal organs, and causing severe bleeding".
Like other Republican lawmakers who were on that field in Alexandria, Virginia, Scalise was preparing for the annual Congressional Baseball Game that - despite the horrific shooting - continued as scheduled on Thursday evening. The crowd chanted "USA!"
Two Capitol police officers, David Bailey and Crystal Griner, as well as House Republican aide Zack Barth were injured, but have been released from hospital.
"The game will go on, D's v. R's, as it has for nearly a century", Huffman said.
Both Republican and Democratic leaders at the game encouraged a sense of unity in the wake of the shooting during an otherwise politically rancorous time in Washington when the parties are sharply divided over healthcare legislation and investigations of the members of the Trump administration. Williams, a former star baseball player at Texas Christian University, is also a coach to the team.
Sen. Jeff Flake of Arizona, who was at Wednesday's practice and gave medical help after the shooting, said it would have "been awful" if the game had been canceled, and said Scalise would want it to go on. Democrats and Republicans played in honor of their grievously wounded colleague, Republican Rep. Steve Scalise.
DAVIS: You know, Scalise is a very popular member of the House Republican Conference.
"Speaker (Paul) Ryan did himself credit when he said 'an attack on one of us is an attack on all of us, '" Larson said.
Jennifer Scalise also is thanking the first responders who rushed to her husband's aid Wednesday and the staff at MedStar Washington Hospital Center, where her husband remains in critical condition.
"I'll be the only third-base coach in America tonight on crutches", he said with a wide grin. "This is always a fun event to come to and see the members of congress show their talent on the field, but I really think this year is going to be special (.) to show members of congress can come together".
Trump added, "We pray for all of the victims of this awful crime who are still recovering, including Zachary Barth and Matt Mika, both of whom are respected and cherished by so many".
More than 20,000 tickets have been sold and more than $1 million raised for charities, including the Capitol Police Memorial Fund, which was added as a beneficiary after the shooting.
Once a relatively cosy affair, played at a minor league ballpark in Maryland, the game has gone big time in recent years and has been played at Nationals Park, just a few streets from the Capitol. Historically they both have 39 wins, 39 losses, one tie.
The game, a charity match between teams of Democrats and Republicans played almost every year since 1909, usually draws about 10,000.
The team of Democrats and Republicans holds an annual softball game against female journalists.style="text-align: center;"