Tonight’s Obama address on the IS challenge is assuming such major significance that I’ve decided to take a hiatus now and resume blogging during and after the speech, as I usually do for SOTU, presidential candidate debates, and national conventions. I’m not promising a full live-blog, but I will offer some thoughts as it transpires and after it ends. See you then!

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Ed Kilgore, a contributing editor of the Washington Monthly, is a columnist for New York.