Primary elections: What to watch in California, Alabama, Iowa and five other states
The June 5 primaries, which spread across four time zones, represent the biggest single day of elections until November.
ref:https://www.washingtonpost.com/powerpost/primary-elections-california-alabama-iowa-new-jersey-montana/2018/06/04/5a4946c4-6764-11e8-bea7-c8eb28bc52b1_story.html