Trump said Thursday that the attack is a reminder of the power good and evil has over the world.
"The assault on June 14 reminded us that evil walks in this world," he said. "But it also reminded us that heroes walk among us."
"When our human instincts tell us to run, there's danger, our police and first responders run towards it, standing in the breach and protecting us from danger."
Watch as Trump honors Alexandria shooting first responders.
President Trump praised the five officers for saving the lives of House Majority Whip Steve Scalise (R-LA) and the four other people injured during last month's shooting.
"The officers saved the lives of every innocent person on the field that day," he said. "They are American heroes and we salute them."
"Thank you for what you did that day and what you do every single day," Trump added to loud applause at the White House.
Trump also called Scalise a "dear friend and "a fighter" less than a week after the congressman's discharge from the hospital.
"He will recover," he said. "We are pulling for him. We are praying for him. And we are sending his family our love and support."
Scalise, the No. 3 Republican in House leadership, nearly died on June 14 when a gunman began shooting at Republican lawmakers, aides and lobbyists in Alexandria, Virginia, practicing for the annual Congressional Baseball Game for charity.
The 51-year-old congressman was released from a hospital in Washington, D.C. Tuesday to begin intensive inpatient recovery for bullet wounds to the hip resulting in broken bones, blood lose and internal organ damage.
The shooter, James Hodgkinson, was fatally wounded by local law enforcement officers who returned fire during the incident.
Vice President Mike Pence on Thursday thanked the five police officers who helped during last month's shooting at a congressional baseball game in Alexandria, Virginia.
"These five officers exemplify the best of law enforcement in this country," he said. "And they honor us by their presence here today. Without regard to personal safety they rushed into danger and prevented an even greater national tragedy."
President Trump will participate in a White House ceremony on Thursday honoring the first responders to the June 14 shooting at the Republicans’ congressional baseball practice.
The shooting on June 14 severely injured House Majority Whip Steve Scalise (R-LA), food lobbyist Matt Mika and congressional aide Zack Barth. A Capitol police officer was wounded and another was injured.
Scalise had to undergo multiple surgeries at the MedStar Washington Hospital Center.The hospital released a statement on Tuesday and wrote that Scalise is now beginning rehabilitation.
"Congressman Steve Scalise has made excellent progress in his recovery from a life-threatening gunshot wound six weeks ago," the hospital said. "Yesterday, he was discharged from MedStar Washington Hospital Center and is now beginning a period of intensive inpatient rehabilitation."
In the past President Trump has called Scalise a "True friend and patriot."