Hillary Clinton is doing it. Glenn Beck did it too. And Dick Cheney? Not so much. This is the season for admitting you were wrong on Iraq in 2003. And all Republicans who either regret their vote to authorize the invasion of Iraq, or who were silent on foreign policy matters back then, should take this occasion to step up and say they'll never make the same mistake twice. To them I say: Do it for the sake of your conscience, and if not that, at least for the sake of your career.In the Obama years, Republicans have habituated...