A billionaire tax booth at the California Democratic Convention in San Francisco, Feb. 21, 2026. California voters have rejected the measure that would have created the nation’s first wealth tax, The Associated Press determined on Monday. (Mike Kai Chen/The New York Times) By LAUREL ROSENHALL California voters rejected a billionaire tax, The Associated Press determined on Monday, rebuking a measure that would have created the nation’s first wealth tax by targeting the assets of residents with…