Playing off his persona as a New Jersey tough guy, Christie issued a mock warning. "New Jersey's watching you … We're watching you real closely," he said. "And I want to tell you something. I want to tell you something really clearly. I'm in a good mood this morning. I'm feeling happy and upbeat. I'm happy to be with Mitt and Ann. But let me tell ya, if you people disappoint me Tuesday, if you don't do what you're supposed to do on Tuesday for Mitt Romney. I will be back, Jersey-style."