Give him credit. Most elected officials are content to tinker at the edges, but Governor Jindal of Louisiana actually wants to solve problems. Look what he’s done, for instance, on fiscal policy. He sought to abolish his state’s personal income tax, a step that would have dramatically boosted the states competitiveness. That effort stalled, but he actually has been successful in curtailing state spending. He’s amassed one of the best records for frugality of all governors seeking the GOP presidential nomination. And he’s now joined the list of presidential candidates seeking to rewrite the internal revenue code. Since we’ve already reviewed...