House Majority Whip Steve Scalise is in “serious” condition and has been readmitted to the intensive care unit due to “new concerns for infection,” MedStar Washington Hospital Center announced late Wednesday evening.

Scalise was shot in the hip last month when James Hodgkinson, 66, of Belleville, Illinois, opened fire on GOP leaders practicing for a charity baseball game.

The Louisiana congressman, who has undergone multiple surgeries, had been transferred out of the ICU on June 22, at which point he was listed in fair condition.