MACON, Georgia — Donald Trump says he isn’t joking anymore. The front-running GOP presidential candidate, who often has crowds laughing during his rallies, threatened to change his joking-style because it results in him being misrepresented — both in the press and in attack ads from his opponents. “They take two second snippets,” he exclaimed before settling back into his usual style, comedy included. But that’s not the only threat Trump levied.