SACRAMENTO, Calif. (AP) — Opponents of an initiative to split California into three states asked the state Supreme Court to pull the measure from the ballot, arguing it's too drastic a change to state government to go through the normal initiative process. A lawsuit filed Monday by the Planning and Conservation League argues major changes to the state's government structure require approval from two-thirds of the Legislature before going under consideration by voters or a state constitutional convention. The initiative would break the state into Northern California, California and Southern California. Northern California would comprise the Bay Area, Silicon Valley, Sacramento and counties north of the current state capital.