Carly Fiorina was not even a candidate for president when Jerrold Perenchio, a Los Angeles billionaire, started putting his money behind her this year and urging his wealthy Republican friends to do the same. -snip- “It’s a big plus for her to have Jerry in her corner,” said Karl Rove, a political adviser to former President George W. Bush, who helped found American Crossroads, a conservative group that has also received millions from Mr. Perenchio. “He is very generous guy who’s in a position to help her capitalize on what she started with her strong performance in the debates,” Mr....