Clinton is expected to deliver a speech at the Prado at Balboa Park Ballroom at 1549 El Prado at 11:30 a.m.
A Clinton aide said that the speech will expand on themes Clinton sketched in a CNN interview in May, when she flatly said Trump, the presumptive Republican nominee, is not qualified to be president.
“Clinton will rebuke the fear, bigotry and misplaced defeatism that Trump has been selling to the American people,” an aide told the Washington Post. “She will make the affirmative case for the exceptional role America has played and must continue to play in order to keep our country safe and our economy growing.”
The speech comes one day after Clinton, when speaking in Newark, New Jersey, called Trump a “fraud'' for taking advantage of Americans through Trump University. Trump countered with a speech in Sacramento saying Clinton has “no natural talent'' and was “one of the worst secretaries of state in history.''
The 69-year-old Trump also criticized the 68-year-old Clinton on Twitter, calling her “a fraud who has put the public and country at risk by her illegal and very stupid use of e-mails. Many missing!''
Trump is scheduled to speak tonight in San Jose. Clinton's opponent in the race for the Democratic nomination, Vermont Sen. Bernie Sanders is scheduled to speak at rallies in Modesto and Chico.
The former Secretary of State is also expected to make stops this week in the Los Angeles area, Orange County, Salinas and San Jose.
“At events, she will ask Californians for their support and urge them to mail in their ballots or go out and vote on primary day,” campaign officials said in a news release. “She will also discuss why she is the best candidate to raise incomes for California families, to lower health care costs and improve education, and to break down the barriers that hold too many Americans back. ”
Clinton is juggling her campaign schedule to spend more time in California -- in hopes of avoiding an embarrassing loss to rival Bernie Sanders in the primary.
“Bernie Sanders is criss-crossing the state -- he's doing a full-court press in California. It's important for her to be here and have a presence," said Francine Busby with the San Diego County Democratic Party.