Actually, only about half the states have laws against teacher strikes.

In my state the educational establishment pumps millions into the legislative process every year, and gets tens of millions in return. Here they aren't teacher advocates, they're political warfighters, with a single political viewpoint, a particular political agenda, and political strike teams that come out swinging when there's money and power at stake.

Details here. The article is from 2005, and a lot of water and cash have gone under the bridge since then.

There's a special election coming up next month, the main purpose of which seems to be voter certification of the cup-and-pea routine the California legistature set up to pretend we're fiscally responsible. Part of it will funnel even more money to the state education system, per the shining myth that money = good education. I can't go five minutes without hearing a radio ad from these organizations pushing this.

On the national level, the NEA is number 7 on the list of the heaviest political donors over the past twenty years.