In May, the Supreme Court ruled the California law was constitutional, and did not violate what's known as the "dormant commerce clause." but Massachusetts Attorney General Andrea Campbell held off on implementing the Bay State's law while her office continued discussions with the plaintiffs.
Midwest pork producers including Triumph Foods have filed a new lawsuit against Campbell, arguing it violates another part of the Constitution — the Supremacy Clause.
Wayne Pacelle, who leads Animal Wellness Action, called the lawsuit one more attempt by producers to delay and thwart implementation of the restrictions.
Pacelle said Massachusetts residents voted overwhelmingly "to stop the extreme confinement of pigs on factory farms."
Click here to see more...