The Associated Press reported that Clinton has the 2,383 delegates needed for the Democratic presidential nomination. The former secretary of state reached the total with support from super delegates in addition to pledged delegates won from the primary elections.
Clinton expressed caution Monday night. She said that while media delegate counts show her close to an "unprecedented moment," she continues to campaign for every vote.
A spokesman for Vermont Senator Bernie Sanders released a statement saying the media was rushing to declare Clinton the winner too soon. But Sanders said he planned to "assess where we are" following the California results.