If the divide were in effect during the 2016 election, Hillary Clinton would have won all three Californias, according to an analysis by the Center for Politics at the University of Virginia, beating President Trump by more than 30 percentage points in both Northern California and California, and by 10 percentage points in Southern California. However, the same analysis found Democratic President Barack Obama would have narrowly beaten Republican Mitt Romney by 0.6 percent in the state of Southern California in 2012.