A handful of Republicans are currently being mentioned as possible Senate candidates for the Florida seat being vacated by Marco Rubio, who is running for the GOP presidential nomination. Former Rep. Bill McCollum, who has run repeatedly (and often unsuccessfully) for statewide office, is mentioned, as are a handful of House members, including Rep. Ron DeSantis, a tea party favorite. Perhaps the most interesting, or at least unusual, candidate for the Republican nomination is the state’s current lieutenant governor, Carlos Lopez-Cantera, a former Florida House member (and majority leader) and Miami-Dade County property appraiser. What makes Lopez-Cantera, who was appointed...