National Journal's Josh Kraushaar argues that Rand Paul has little chance of winning the Republican presidential nomination because the party rejects his non-interventionist approach to national security. Exactly right.
Kraushaar gets it wrong, however, when he explains why the party's peacenik wing has flamed out. He thinks it's because the world is getting more dangerous.
"As Paul aggressively prepares for a presidential campaign, his odds of winning the GOP nomination have never looked longer," Kraushaar writes. "With ISIS amassing territory in the Middle East, Russia remaining belligerent against Ukraine and the threat of a nuclear Iran growing, the public has taken a decidedly hawkish turn."
I think this gets it almost exactly backward. The reason the hawks are as firmly in control as ever in the Republican Party isn't a result of the "international stage turning more dangerous." It's because the United States is closer to peace than it has been in years.
Outside of the small libertarian group, the people in the Republican Party who really care about foreign policy - the ones who will join the Defense and State Departments and the National Security Council in any Republican administration - are all hawks of one flavor or another and pretty much have been at least since Ronald Reagan's presidency. Most of the other influential people and groups in the party just don't care much about foreign policy; they care about taxes or abortion or unions or guns or other economic and social issues.
This isn't just true of Republicans. Most voters (and most organized political groups) aren't interested in foreign policy. Yes, they'll sometimes report concern about a national-security issue if it's in the news, but there's little evidence that foreign policy actually moves voters.
Things change, however, when the United States is at war. Long wars breed antiwar sentiment - especially long wars without visible success.
The Iraq and Afghanistan wars had started to foster a real antiwar, anti-interventionist group of Republicans. But this movement was never likely to survive those wars, and as casualties slowed to a trickle, it has evaporated.