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MIAMI (CBSMiami) – Hillary Clinton swept primaries in Puerto Rico and the Virgin Islands over the weekend and is now an estimated 26 delegates shy of locking up the Democratic nomination but her opponent Bernie Sanders says not so fast.

Clinton is campaigning in California ahead of Tuesday’s primary where she hopes to wrap up the Democratic nomination.

“I want to finish strong here in California.  It means the world to me,” said Clinton.

The former Secretary of State may not need California. She has a 27 point lead in New Jersey where 142 delegates are at stake. But she has just a two point lead in California.

Meantime, Sanders says he will fight for the nomination through the convention. He says Clinton has work to do to win over his supporters.

“It is Secretary Clinton’s job to explain to the people why she should get their support,” said Sanders.

On the Republican side, Donald Trump is defending comments that the judge presiding over the Trump University lawsuit isn’t fair because of his Mexican heritage.

While on “Face the Nation” on CBS, Trump explained why he thought the judge’s Mexican parents influenced the ruling.

“He’s a member of a club, a society, very strongly pro-Mexican, which is fine.  But I say he’s got bias, I want to build a wall,” said Trump.

Even Trump’s supporters say he needs to back off those kind of statements.

“I think he has a chance here to win by a huge margin if he can elevate the campaign to the big decisions that matter in the lives of the American people,” said Fmr. Speaker of the House Newt Gingrich during an interview with Fox Business.

Trump is gearing up for the general election, a new national political director was hired Sunday and the campaign says it’s working to beef up its communications team.

Jim Murphy, the new Trump political director, was once a senior advisor on Bob Dole’s presidential campaign.

Click here to read more about Campaign 2016.