Sen. Ted Cruz is proving to be a "disciplined" campaigner and "a leader with a real plan," but Donald Trump and Sen. Marco Rubio lack "consistency" on the big issues including guns and immigration, GOP presidential primary dropout Rick Perry says. In a radio interview with conservative radio host Simon Conway in Iowa, the former Texas governor — who dropped his own White House bid in September — heaped praise on Cruz for his "wily" and "wise" performance in the fifth GOP presidential candidates' debate in Las Vegas. Audio of the interview was posted by Buzz Feed News. "I think...