The son won 23.7 per cent to only 21.4 for the runner-up, Gov. Scott Walker of Wisconsin, best known for his union-bashing back home. He artfully dodged press questions on whether he approved of former New York Mayor Rudy Giuliani'scomment that President Obama "does not love America." Sen. Ted Cruz of Texas, the purest of them all, ran third, with others in the field of about 20 in single digits, including New Jersey Gov. Chris Christie with only 8 percent.