CNNMoney: Donald Trump has added his name to the crowded field of candidates for the 2016 Republican presidential nomination. NBC, the broadcaster of Trump’s reality show “Celebrity Apprentice,” immediately said it would monitor his candidacy and reconsider his role on the show. “We will re-evaluate Trump’s role as host of ‘Celebrity Apprentice’ should it become necessary, as we are committed to this franchise,” the network said. If NBC were to televise a new edition of the “Apprentice” while Trump was out on the stump, other candidates could cry foul about the unfair exposure. There are even government “equal time” rules about this issue.