Mr. Rubio, the freshman senator whose political career in Florida sprouted and grew as fast as a mangrove in the Everglades, is also acceptable because his robust right wing views are balanced by a conventional personal style. Recently, Mr. Rubio proved his appeal at an economic forum in Rancho Mirage sponsored by the billionaire Koch Brothers. While Rand Paul turned off the mega-donors with his blue jeans, cowboy boots and suspicious economic ideas, Mr. Rubio was a big hit in his well-cut blue suit, starched white shirt and crimson tie. They also liked his pro-growth talking points. Mr. Rubio's reward was to take first place in a straw poll of the donors.