California has been passing tough animal welfare laws. A court just handed the state a big victory.

For more than a decade, foie gras producers have been fighting to stop California from banning foie gras. Their argument: that some states imposing different, higher animal welfare standards violates the commerce clause of the US Constitution (which leaves the regulation of interstate commerce up to the federal government), or alternately violates federal laws about the production of poultry products.  Read more