Democrats have run California for years. But in a nationally critical election, the party is being confronted by the limits of its own power: the race for governor is out of control. Barely a month before the start of mail-in voting, Democratic leaders are openly dreading the possible loss of a statewide election for the first time in two decades. No star has emerged from a muddled field of candidates for the state’s premier job. Meanwhile the race has degenerated into finger-pointing over debate eligibility, identity politics and 2025 ballot counting — issues distant from voters struggling with soaring gas and food costs.