South Dakota Governor Kristi Noem, a Republican and ally of Donald Trump, was reminded on Saturday of her puppy-killing past when she posted about visiting a man who turned 100 years old. Noem previously admitted to killing a puppy in a “gravel pit,” and then defended her actions by saying any mother on a farm would have done the same because the puppy attacked chickens. She has been haunted by the story ever since it went viral when she wrote about it in her book. Over the weekend, she sought to tell an unrelated story, but it didn’t go as planned on her social media. Want more breaking polit…