Six states hold primaries Tuesday, including races for California governor and Los Angeles mayor.

Former reality TV star Spencer Pratt is hoping to advance in LA's mayoral race against incumbent Karen Bass and progressive Nithya Raman.

Democrats hope to expand their Senate map in Iowa and Montana despite challenging political terrain.

AI-generated summary was reviewed by a CNN editor.

Six states will hold primaries on Tuesday: California, Iowa, Montana, New Jersey, New Mexico and South Dakota.