For most of the summer, Katherine Harris's Republican primary opponents complained bitterly that Harris would not agree to debate them. But that won’t be a complaint from Sen. Bill Nelson, the Democrat Harris faces in November. Harris and Nelson will have two debates over the next 60 days. The first will be on Oct. 23. That debate, arranged by Leadership Florida, the Florida Press Association and Florida Public Broadcasting will be at Nova Southeastern University in Fort Lauderdale and will air from 8 p.m. to 9 p.m. on the state’s 25 public television stations. A second one-hour debate will be...