Democrats are trying to defend California and make inroads in Iowa in primary elections. California's governor's 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's repeatedly disappointed them. Republicans are grappling with a New Jersey congressman whose unexplained absence could put their already slim majority at risk. And as voters cast ballots Tuesday, Los Angeles is deciding who'll lead the nation's second-largest city as it prepares to host the Olympics.

There’s no shortage of mordant fun to be had at the expense of the Democratic National Committee and Iowa Democratic Party after the fiasco of…