We get it already. The Iraq war was a mistake.
Indeed, on this point pretty much everyone agrees. Jeb Bush, the brother of the president who launched the war, has said so. So has Hillary Clinton, the only presidential candidate in either party to have actually voted to invade Iraq (though she refused to admit her vote was a mistake until fairly recently).
The only disagreements on the Republican side are about the degree and nature of the mistake. Catch Donald Trump in a glandular moment and he'll say that George W. Bush knowingly sent thousands of Americans to their deaths based on a lie. Ask Trump when he's in a more mature mood -- or when he gets bad press for his slanders -- and he'll say he doesn't know whether it was a lie.
The other GOP candidates agree that it was a mistake in hindsight, though most say, rightly, it was defensible at the time. Indeed, some of us believe that we could have turned a mistake into a success had Barack Obama not been in such a hurry to squander the hard-won victories of President Bush's surge.
On the Democratic side, there's a lot less nuance. Sen. Bernie Sanders insists that Clinton's vote for the war is all you need to know about her foreign policy judgment. Clinton's reply is, "One vote in 2002 is not a plan to defeat ISIS."
Clinton is right, of course. But at this point, plans are less important than the will to put them into action. I suspect there's no shortage of plans to get the job done sitting in Obama's inbox. What's missing is a presidential commitment to implementing them.
But ISIS is just one of our problems. Obama's own director of national intelligence, James Clapper, told the Senate Armed Services Committee last week that we now face "the most diverse array of challenges and threats that I can recall."
By no means is it all Obama's fault. Saudi Arabia's problems, for instance, are a poisonous mix of religious extremism and medieval political arrangements temporarily sustained by an ultimately unsustainable economic model. Similarly, Vladimir Putin has had his eyes on restoring the grandeur of imperial Russia for decades. China's burgeoning nationalism has been baked into the political and demographic cake for even longer.
But these and other challenges have all been made worse on Obama's watch. Russia seized Crimea and declared an unofficial war on Ukraine. China has only grown emboldened in the face of American lassitude. Just this week, China deployed new missile systems to one of its manmade islands in a disputed region of the South China Sea while Obama was holding his South Asia summit in California. The insult was not subtle.
Obama's Iran deal, crafted unilaterally as an end-run around Congress, has started a Middle Eastern nuclear arms race and caused our longstanding allies in the region to question our reliability. To date, there's no evidence that Iran has abandoned its role as a terrorism sponsor, its quest for nuclear weapons or its goal of becoming a regional hegemon.
Before that, Obama's decision to renege on our missile defense commitments to our Eastern European allies sent a similar signal to friends and foes alike.
We can debate how much blame Obama deserves for Syria's civil war, but almost no one outside his paid staff disputes that he's only made things worse. The conflict there has set off the worst humanitarian crisis in Europe since the end of World War II -- that's John Kerry's own assessment -- which may yet tear the European Union asunder.
The instability closer to the fighting is even more dangerous. Russia and Turkey may soon go to war with each other, as Russia mercilessly and indiscriminately massacres anyone standing in the way of its pet, Syrian President Bashar Assad. The Jordanian monarchy may crumble, in part for a lack of assistance from the United States.
And yet, the gravity of the situation has yet to enter into the presidential contest in a serious way. As a co-author of Obama's disastrous foreign policy, Hillary Clinton has no interest in calling attention to the global catastrophes unfolding around us. Bernie Sanders doesn't want to talk about anything he can't blame on billionaires, and Donald Trump doesn't want to talk about anything other than his poll numbers, his insults and the fraudulent claim that he predicted all of this before Bush launched the war in Iraq.
It's time to take these things seriously, before it's too late.
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Jonah Goldberg is a fellow at the American Enterprise Institute and editor-at-large of National Review Online.