Real-estate developer Donald Trump said Wednesday that he had no regrets about announcing the personal cell-phone number of a rival presidential candidate, Sen. Lindsey Graham (R-South Carolina), at a rally. "I did it for fun, and everybody had a good time," Trump said in a "Fox & Friends" interview. Trump raised eyebrows Tuesday when, in the middle of a speech in Graham's home state, he mocked the senator for once reaching out to him for help. "He called me four years ago, ... I didn't even know who he was," Trump declared, holding up a piece of paper with Graham's...