WASHINGTON, DC - OCTOBER 21:  House Majority Whip Steve Scalise (R-LA) speaks during a news conference following the weekly House GOP conference meeting in the U.S. Capitol October 21, 2015 in Washington, DC. Speaker of the House John Boehner (R-OH) announced that the internal Republican election for speaker will be Oct. 28, and the floor election will be Oct. 29.  (Photo by Chip Somodevilla/Getty Images)
Who is Congressman Steve Scalise?
00:57 - Source: CNN

Story highlights

Scalise was injured in a shooting at baseball practice on June 14

He is back in the intensive care unit, his office says in a statement

CNN  — 

Rep. Steve Scalise has been readmitted to the intensive care unit “due to new concerns for infection,” a statement from his office said.

His condition is listed as serious, according to the statement.

Scalise, the Republican House majority whip who represents Louisiana, was critically injured when a gunman, identified as James T. Hodgkinson, opened fire on the GOP baseball team as they were practicing for a charity game on June 14.

Hodgkinson, a small business owner in Illinois, had been vocal about his support for Bernie Sanders – and his hatred for conservatives. He died following a shootout with authorities.

Scalise sustained a single gunshot wound to his left hip and suffered “significant damage” to his blood vessels, bones and some internal organs, his doctor said last month.

The congressman’s condition subsequently improved, and he was released from the MedStar Washington Hospital Center’s intensive care unit less than two weeks ago.

An aide to Scalise told CNN, “From the start, the whip’s doctors have made it clear that this will be a process with ups and downs, and this is in keeping with those expectations.”

Another update on Scalise is expected Thursday, according to his office.

Following the news of his return to the ICU, many tweeted well wishes using the hashtag #PrayForScalise.

Who was injured?

Four people, including Scalise, were shot and two others were injured.

Matt Mika received a visit from Washington Nationals outfielder Jayson Werth on June 23.

Matt Mika, a lobbyist for Tyson Foods and former congressional aide, was shot. His condition improved and he was discharged from the hospital on June 23.

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Shooting victim: I was hit and ran for my life
01:47 - Source: CNN

Zach Barth, a congressional staffer, was shot in the leg and was released from the hospital shortly after.

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Hero Capitol Police officer tosses first pitch
00:44 - Source: CNN

Crystal Griner, a US Capitol Police officer, was shot in the ankle. She later tossed the first pitch at the Congressional Women’s Softball Game.

WASHINGTON, DC - JUNE 15:  U.S. Capitol Hill special agent David Bailey (L), who was wounded in yesterday's shooting, throws out the first pitch before the Congressional Baseball Game at Nationals Park on June 15, 2017 in Washington, DC. Bailey and special agent Crystal Griner were assigned to U.S. Rep. Steve Scalise (R-LA) and returned fire during the attack. Scalise is in critical condition following a shooting yesterday during a Republican congressional baseball team practice.  (Photo by Win McNamee/Getty Images)
Wounded officer throws out first pitch
02:47 - Source: CNN

David Bailey, a Capitol Police special agent, was treated for a minor injury after responding to the shooting, police said. The special agent threw the first pitch at the Congressional Baseball Game while walking on crutches.

The annual baseball game between Democrats and Republicans took place the day after, as both teams wore Louisiana State University hats in honor of Scalise for part of the game.

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Injured lawmaker's tearful thank you to police
01:04 - Source: CNN

Texas Rep. Roger Williams sustained a leg injury and spoke to the media, tearfully thanking officers Griner and Bailey.

CNN’s Gregory Wallace and Diane Ruggiero contributed to this report.