Nikki Haley doubles DeSantis' support. Donald Trump leads him by 57 points. Gov. Ron DeSantis arguably had his best performance in a national debate this week, with a widely viewed showdown with California’s Gavin Newsom the week before. But new polling suggests it might not matter. In the latest Emerson College poll, the Florida Governor has fallen to 7%, his worst showing in any national survey in the 2024 cycle. Adding insult to injury, DeSantis is actually at 6.7%, benefiting from rounding to even hit the modest 7% threshold. DeSantis trails Nikki Haley, who has double his support at 14%....