Trump would lose to actor Tom Hanks by 25 points, 56% to 31%
Trump would lose to celebrity businesswoman Oprah Winfrey by 24 points, 56% to 32%
Trump would lose to Massachusetts Sen. Elizabeth Warren by 21 points, 53% to 32%
Trump would lose to California Sen. Kamala Harris by 20 points, 53% to 33%
Trump would lose to Facebook founder Mark Zuckerberg by 19 points, 50% to 31%
Trump would lose to New York Sen. Kirsten Gillibrand by 14 points, 46% to 32%
Trump would lose to Los Angeles Mayor Eric Garcetti by 14 points, 46% to 32%
As for Trump's job performance, 60% of California voters surveyed said they did not approve of the job he is doing as president. Thirty percent of Californians did approve of the job Trump he is doing, the poll showed.
When it comes to Trump's border wall proposal, Californians were asked if a wall between the state and Mexico would make them feel safer or less safe. According to the poll, 25% said they would feel safer; 15% said they would feel less safe, 54% said a new wall would make no difference; 6% were not sure.