Decision to alter Ohio river flow ‘made solely by agents’, the security agency said in a statement

A spokesperson for JD Vance said he and his staff were unaware that the Secret Service decided earlier this month to ask military engineers to raise the water level of the Little Miami River ahead of a family boating trip, which took place on his birthday.

“The Secret Service often employs protective measures without the knowledge of the vice-president or his staff, as was the case last weekend,” the spokesperson said.

The statement followed the publication of a Guardian report on Wednesday that revealed the US Army Corp of Engineers (USACE) in Louisville, Kentucky, had been asked by the Secret Service to raise the outflow of a lake to accommodate Vance’s boating excursion. The USACE had said on Wednesday the decision was made to “support safe navigation” of Vance’s security detail.

The Secret Service provided additional information on Thursday, emphasizing in a “revised” statement to the Guardian the vice-president’s office was “not involved in the decision” and that it had been “operationally necessary” to adjust the water levels to accommodate motorized watercraft, local law enforcement and emergency responders.