If the forces behind this show-us-your-papers subpoena succeed in punishing (or simply inflicting prolonged legal harassment on) groups conducting supposedly wrongful advocacy, there’s every reason to think they will come after other advocacy groups later. Like yours.

This article in the Observer details the current push to expand the probe of climate advocacy, which first enlisted New York AG Eric Schneiderman and then California’s Kamala Harris — into a broader coalition of AGs, with Massachusetts and the Virgin Islands just having signed on. More than a dozen others, such as Maryland Attorney General Brian Frosh, seem to be signaling support but have not formally jumped in. More: Peggy Little, Federalist Society.

CEI people, many of them longtime friends of this site, have been active critics of the Schneiderman effort, with Hans Bader, a senior attorney there, highly critical just a week ago.