Hillary Clinton to Go After Donald Trump's 'Dangerous' Policy Proposals in National Security Speech

An aide says Clinton will slam Trump's "dangerous" foreign policy proposals.

The speech -- her first on national security since Trump became the presumptive Republican presidential nominee -- kicks off Clinton’s 5-day swing throughout California ahead of the state's tighter-than-expected June 7 primary.

Instead, an aide to Clinton tells ABC News she plans to use these remarks to criticize the man she’ll likely run against in the general election for his "dangerous" foreign policy proposals and for his "incessant trash-talking of America."

"Clinton will speak extensively about the reasons why Donald Trump is unqualified to be our commander-in-chief," Jake Sullivan, Clinton’s senior policy adviser, said in a statement.

"But," Sullivan added, "Clinton's critique will go beyond specific policies and she'll make clear that the choice in this election goes beyond partisanship: Donald Trump is unlike any presidential nominee we've seen in modern times and he is fundamentally unfit for the job."

In recent weeks, Clinton has taken a more aggressive stance against Trump, taking aim at his personality, his foreign policy ideas and his business ventures.

Trump has brushed off the ramifications of the case and has repeatedly said he will win in court.