The California Assembly voted today to approve a bill that would ban the docking of cows’ tails in the state except in the case of medical necessity. The bill has also passed a state Senate vote, meaning its only remaining hurdle to be enacted is a signature from Gov. Arnold Schwarzenegger. But that signature may be hard to come by. During the state budget standoff in early July, Schwarzenegger derided the bill in a very public forum — his Twitter feed, which recently passed the millio