Per Senator Tillis’ staff:

Senator Tillis has been released from the hospital and is doing very well. He became dehydrated and overheated during today’s ACLI Capital Challenge and collapsed. Several good Samaritans, including Capitol Police, immediately provided assistance to the Senator, including chest compressions. The Senator was taken to the hospital, and doctors found the episode was caused by overheating. He was released after receiving a clean bill of health.  Senator Tillis is incredibly grateful to the good Samaritans who assisted him at the race and the medical professionals at the hospital.

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