Commander was sent to an undisclosed location after the Secret Service recorded 24 biting episodes involving him between October 2022 and July 2023, about half of which required medical attention.

The South Dakota governor, who had been widely seen as a contender to be former President Donald J. Trump’s running mate, wrote in the book about a female wire-haired pointer named Cricket that she had hoped to use to hunt pheasant on her ranch. She said that the dog proved “untrainable,” “dangerous to anyone she came in contact with” and “less than worthless” as a hunting dog — so she shot her in a gravel pit.

In the CBS interview, Ms. Noem sought to defend the killing of Cricket — and a goat she also shot the same day — as “a choice I made over 20 years ago” to “protect people.”