Who is Kristi Noem trying to impress by bragging about killing her dog?

• Kristi Noem's forthcoming book reveals she shot and killed her family dog.
• The South Dakota governor said the 14-month-old animal bit her and attacked her family's chickens.
• Who is she trying to impress by disclosing this?

After The Guardian published excerpts from a forthcoming book by Gov. Kristi Noem of South Dakota detailing how she killed her daughter's young dog, the rising Republican politician has doubled down on the decision as a matter of principle.