His grandfather Prescott Bush was a U.S. senator, and his father and brother were presidents. Yet Jeb Bush doesn't believe in political dynasties, and seems perfectly willing to let his family's legacy of serving in high office in Washington pass him by. But Mr. Bush becomes animated when talking about ideas and policy innovations -- he's an unorthodox Republican who latches onto reform ideas wherever he finds them. He's a fan of the school system in Sweden (more on this below).... "Beyond the ideas and all of that," Mr. Bush says the GOP must be a national party. That means...