Veteran GOP foreign policy hawks are flocking to Hillary Clinton. Is it callow opportunism, or a major realignment? Much has been made of the swing in political allegiances of neoconservatives in favor of Hillary Clinton. As a group, Washington’s neocons are generally terrified of Trump’s unpredictability and his flirtation with the alt-right. They also support Clinton’s more assertive foreign policy (not to mention her closer relationship to Israel). Perhaps, too, after eight long years in the wilderness, they’re daydreaming of an appointment or two in a Clinton administration. This group...