Kentucky teachers did:

I’m not a fan of vouchers, for reasons I’ll explain momentarily, but even I was horrified by the spectacle of teachers’ unions from across the nation — California, Washington, Colorado, Kentucky, Connecticut and twice as many more — assembling money to vanquish the Utah referendum. The National Education Association and its front organization, Communities for Quality Education, dropped just under $3.5 million into what should have been a local campaign.