The speech in San Diego comes as the former secretary of state seeks to shift her attention to the Nov. 8 presidential election against likely rival Trump and away from Bernie Sanders, the U.S. senator from Vermont who is continuing his longshot bid for the Democratic nomination.
Trump has said he would sit down with North Korean leader Kim Jong Un to try to stop Pyongyang’s nuclear program and has criticized the decades-old NATO alliance with mainly European nations as obsolete and too costly for the United States.
“It’s important that people understand this is not just about Republican versus Democrat, that Trump is unlike any presidential candidate we have seen and he is fundamentally unfit to be our commander in chief,” Clinton aide Jake Sullivan said in an interview before the speech.
California, the most populous U.S. state, is among six states that hold Democratic nominating contests on Tuesday.
Clinton already has a nearly insurmountable lead over Sanders in the delegate count, but is hoping a decisive win in California can help her clinch the nomination and quell concerns about divisions in the party before the general election. more