I believe this is true. There are still school boards that want to push creationism/ID, as in Kansas, and also the occasional state legislator, as in SC, but when they talk to their lawyers, after the lawyers have reviewed the Dover decision (Kitzmiller et al. v Dover Area School District et al.), very few of them will go all the way. The Dover decision is almost certainly the death of ID's attempt to sneak into science classes. And the total wipeout of the Dover school board in the recent election is -- we can hope -- the end of ID as a republican issue.
There are perhaps a few scientific proponents of ID that have successfully disguised their religious motivations in the issue. But I doubt there will be any school board that will ever promote ID that won't also have a religious paper trail. That will kill the ID-in-school project flat.