The first major national poll since the second GOP debate finds Carly Fiorina surging into a second place and Wisconsin Governor Scott Walker’s campaign in total collapse. The survey by CNN of 444 registered Republican voters put Donald Trump in first place with 24% support, a drop of 8 points since their last poll, and Fiorina in second place with 15%. Fiorina earned plaudits on the right for her debate performance, which included multiple clashes with Trump, although fact checkers pointed out that she vividly cited footage from a hidden camera video of Planned Parenthood that does not appear to...