Mr Trump said Mr Scalise "was badly wounded and is now in stable condition".
Rep. Roger Williams, R-Texas is placed into an ambulance at the scene of a shooting at a baseball field in Alexandria, Va., Wednesday, June 14, 2017. He is expected to make a full recovery, Williams said.
He said never thought he'd go to a baseball practice and "have to dodge bullets". Scalise is in critical condition, according to MedStar Washington Hospital Center, and the other patient was hospitalized. "Prior to entering surgery, the Whip was in good spirits and spoke to his wife by phone".
"America is praying for you and America is praying for all of the victims of this awful shooting", he said. Trump called for unity, saying we are strongest when "we work together for the common".
The shooting happened as Republican members of Congress were getting ready for the annual Congressional Baseball Game, which was scheduled for Thursday in Washington.
A Democrat team was also practicing early Wednesday morning, but there was no threat. "He was a sitting duck".
Sen. Rand Paul of Kentucky, who was in the batting cage in the outfield as the gunman began firing said the officers' presence prevented a "massacre". Some 50 shots were reportedly fired, according to other Representatives who were at the scene. He said the gunman had "a rifle of some sort. a lot of ammo". Security has been increased at the U.S. Capitol and at the White House following the shooting, ABC News reported.
"It was scary", Barton said.
Rep. Jeff Duncan said in a statement that he was at the practice and "saw the shooter".
The shooting at the GOP congressional baseball practice could have been motivated by heightened partisanship, a Republican congressman who survived the attack told CNN.
She said the officer had got out of a parked auto, drawn a handgun and shouted something to the gunman, who then fired.
Once the gunman was down, Mr Flake ran to Mr Scalise and tended to him.
"I just didn't want her to wake up and learn the news", Mr Flake said. Brooks said that Scalise, 51, was down on the ground with what Brooks described as "a hip wound".
"He was dragging his body from second base", Brooks said.
Trump said the gunman has died from his injuries.