JEB BUSH TIPTOES ABOVE THE FALLS

Jeb Bush has been a putative candidate for the White House for only a few weeks and already he is discovering that presidential politics requires an elegant equipoise. Bush tiptoed into the 2016 campaign as a Republican moderate, his natural opponents for establishment GOP votes being Mitt Romney and, after the former Massachusetts governor stood down, Gov. Chris Christie of New Jersey. But this is not his father's Republican Party, nor even his brother's. Both of the earlier Bushes profited mig