Already eyeing general election, Jeb Bush builds data operation

Months before the first primaries, Jeb Bush and his allies are building a data-driven operation to turn out voters in the general election much later — spending heavily on the assumption he will overcome his sluggish start and win the Republican presidential nomination. It’s a strategy aimed at avoiding a 2016 repeat of the GOP’s glaring deficiencies in using technology to get their supporters to vote four years ago. But it’s already hit a roadblock. Bush and his advisers have…