Paul likes to calls his foreign policy “realism,” but his record on Russia suggests the label is inapt. Last year, he thought what was wrong with President Barack Obama’s Syria policy was that we weren’t engaging the Russians enough. Earlier this year, he held out the Syria chemical-weapons deal — a humiliation for the United States that secured Bashar Assad in power — as a model for future diplomacy. He thought the Russians were a partner for peace, right on the cusp of their launching a war.

You don’t have to be a war profiteer to consider this dewy-eyed foolishness. Barack Obama’s can’t-we-all-get-along naiveté didn’t hurt him in his primary fight in 2008, but he was running in the other party. Rand Paul is running in a party that, while chastened on foreign policy, still has a hawkish reflex — and not because it is beholden to Halliburton.