Fox News host Neil Cavuto wonders if Republicans are underestimating Democratic presidential nominee Kamala Harris, whose prosecutorial finesse on the debate stage may pose a serious threat to Donald Trump. “I’m wondering if Republicans – because they focus on things that seem silly to me, like the cackling and all of that – don’t appreciate the fact this woman could be a barracuda,” Cavuto said during his afternoon broadcast on Fox News Friday. “She is a prosecutor and she will try, in any exchange with Donald Trump, to prosecute him, and I don’t know if they appreciate the magnitude of that….