He was wounded in a gunfight with Capitol Hill police at the scene and later died. He underwent immediate surgery, and an additional procedure to stop bleeding.
"The Congressman will require additional operations, and will be in the hospital for some time." the Medstar Washington Hospital Center said in a statement, adding that Scalise has "improved in the last 24 hours".
Scalise remains in critical condition at the hospital.
"When he started shooting, he was shooting to kill people".
Sen. Heidi Heitkamp said, "Today is a sad day". Also wounded was former congressional aide Matt Mika, who now works for Tyson Foods in its Washington office. Two Capitol Police officers sustained relatively minor injuries, as did a congressional aide, and they have been released from hospitals.
"There must have been 50 to 100 shots fired", he told CNN.
Walker tweeted about the shooting Wednesday morning, thanking Capitol Police for its bravery. Timothy Slater, an Federal Bureau of Investigation special agent in charge of the Washington field office, told reporters Wednesday that authorities are trying to determine Hodgkinson's motive and why he was in the area. No one else was in custody, he said.
Investigators believe he had been living out of a van in northern Virginia since March.
Wednesday's shooting revived debate about gun rights in America.
Such an attack seemed to be sadly inevitable with the boiling political environment that has enveloped the USA over the past decade. On social media, Hodgkinson had previously posted messages expressing disdain for Republicans.
"Just left hospital", Trump later reported on Twitter.
Asian shares fall after Fed rate hike, tracking Wall St lead
USA crude for July delivery on the New York Mercantile Exchange was down 15 cents at US$44.58 a barrel late afternoon in Asia. The central bank rose rates by 25bp to 1.25 per cent at its FOMC meeting that concluded on Wednesday.
Penguins' Stanley Cup victory parade will be held Wednesday
He'll just have to wait until the first round of next year's postseason to add that entry to his already ridiculous resume. Viewership was up 19 percent vs. the 2016 Stanley Cup Final , which featured the Penguins and the San Jose Sharks.
Congressman who witnessed shooting gives emotional, harrowing retelling of baseball shooting
The shooter attempted to gain access to the field, but a locked fence restricted his access. Thursday's game will be held at Nationals Park, where the Washington Nationals play.
The popular annual face-off, which raises money for charity, is scheduled to go forward as planned Thursday evening at the Nationals stadium across the Potomac from where the shooting took place.
"We've got to get back to. where things aren't so personal and we're so judgmental of each other".
Trump, who announced the gunman's death, called for unity.
House Democratic leader Nancy Pelosi lashed out angrily at such comments.
"He always talked about becoming a police officer, and I remember when he first shared that he was working in Washington, D.C., and that he was a police officer he was so proud", Brooks said.
"I think the Congress people were the targets", he said. DeSantis gave a similar account.
Capital police advise congressmen about what they should do to minimize possible loss of life at public events. "I had to make a run for it".
In a national address, Trump appealed for unity following the morning assault in the Washington suburb of Alexandria, Virginia.
Colleagues said Scalise, who had been fielding balls at second base, dragged himself away from the infield, leaving a trail of blood before they rushed to his assistance.
Capitol Police officers in Scalise's security detail returned fire, and Hodgkinson later died from his injuries. "It would have been a massacre without them". "Those aren't good odds", Brooks said. At least one representative has suggested curtailing town halls, and some lawmakers are exploring using funds for more robust security for other members of Congress.