Barron, 18, attends his first rally for his father, gets a big ovation
                                
                                
                                    (Newser) -
                                    When Donald Trump spoke at a rally in Miami on Tuesday night, he acknowledged a first—the presence of his youngest child, Barron. "That's the first time he's done it," Trump said of the 18-year-old, per the  Palm Beach Post . As cheers grew, the former president...