There is a potential presidential candidate whom almost every Republican wants. This person would not only galvanize the GOP base, but attract large numbers of independents and centrists as well. He would smash President Obama in 2012 and probably win by a landslide. He is Rep. Paul Ryan of Wisconsin. More than Mitt Romney, Sarah Palin and Newt Gingrich - or any other possible “first-tier” candidate - the House Budget Committee chairman would be the most formidable challenger. He is smart, articulate and principled. He has name recognition.