Whether his post was U.N. Ambassador, CIA director or Vice President, George Bush has always found himself taking orders rather than taking charge. Though Bush has spent two decades in public service, many who know him find it difficult to imagine what he would do if he finally stepped into the Oval Office as Commander in Chief. One charitable forecaster says Bush's leadership would be "pragmatic, noncharismatic." But a blunter G.O.P. policy expert predicts that a Bush presidency would be "mediocre."
There is sound reason for that harsh assessment. Perhaps the most extraordinary thing about Bush's career has been his consistent...