A voter registers to cast her vote as others wait in line to cast their ballots in the California presidential primary on Tuesday, June 7, 2016 at the Sabores De Oaxaca restaurant in Los Angeles, California.

More than 8.5 million ballots were cast in the California primary. Unlike the primary for state officials, the presidential primary consists of different rules for each party, which made it difficult for voters to choose any candidate. Some citizens believe the presidential primary does not have the voter mind.