U.S. Rejects Extradition Request for Driver in Fatal U.K. Accident

Mr. Dunn’s family welcomed the British government’s request for Ms. Sacoolas’s extradition, however, calling it an “important development,” Radd Seiger, their spokesman, said in an email on Sunday.

“Despite the unwelcome public comments currently emanating from the U.S. administration that Anne Sacoolas will never be returned, Harry’s parents, as victims, will simply look forward to the legal process unfolding, as it must now do confident in the knowledge that the rule of law will be upheld,” Mr. Seiger said.

He added that “no one, whether diplomat or otherwise, is above the law.”

Mr. Seiger, who was in the United States as part of the family’s Justice for Harry campaign, said the family was used “to treating anything that the Trump administration says publicly with a pinch of salt.”

In October, President Trump stunned Mr. Dunn’s parents, Charlotte Charles and Tim Dunn, when he invited them to the Oval Office for a meeting. Fifteen minutes into their meeting, he told them that Ms. Sacoolas was waiting in a room nearby and wanted to meet with them, they said. They declined.

Mr. Trump has described the crash as “a terrible accident,” but suggested that it would be difficult for Americans driving on the opposite side of the road in Britain.

“You know those are the opposite roads, that happens,” he said. “I won’t say it ever happened to me, but it did. When you get used to driving on our system, and then you’re all of a sudden on the other system when you’re driving, it happens.”

Lara Jakes contributed reporting from Washington.