California's governor race is lacking star power this year. Big names like Kamala Harris and Alex Padilla have opted out, leaving a crowded field of about 60 candidates. Democrats are looking to Iowa for one of their best chances to pick up a governor’s seat in a state that has repeatedly disappointed them. Republicans, meanwhile, are grappling with a congressman whose unexplained absence could put their already slim majority at risk. And Los Angeles is deciding who will lead the nation’s second-largest city as it prepares to host the Olympics. Here's what to know as voters cast ballots on Tuesday.