Finding a place more diametrically opposed to Republican presidential frontrunner Donald Trump than the Bay Area would be challenging. On top of the general liberal tilt of the region, you have tech moguls like Mark Zuckerberg--who tends to present as non-partisan in his politics--opposing Trump's immigration plan, a basic tenet of the candidate's platform.

So when Trump delivers the keynote address at the California Republican Party Convention in San Francisco-area city Burlingame, expect protests. Two events to protest Trump have drawn more than 3,000 RSVPs on Facebook, plus thousands more "maybes." Civil rights groups reportedly delivered petitions to Google's Mountain View headquarters earlier this week urging the company to withdraw sponsorship from the Republican National Convention and flew a plane overhead with a banner reading, "Google: Don't Be Evil. #DumpTrump."

Antipathy goes both ways and extends beyond Trump's promise to deport 11 million undocumented immigrants and build a wall between the United States and Mexico. Trump has made statements directly attacking certain tech companies and their CEOs.

Amazon

Responding to negative coverage in The Washington Post, owned by Amazon CEO Jeff Bezos, Trump said earlier this year, "I have respect for Jeff Bezos, but he bought The Washington Post to have political influence, and I gotta tell you, we have a different country than we used to have ... He wants political influence so that Amazon will benefit from it. That's not right. And believe me, if I become president, oh, do they have problems. They're going to have such problems."

Apple

Trump also called for a boycott of Apple following the company's refusal to aid the FBI in breaking encryption on the iPhone used by the San Bernadino shooter. "Boycott Apple until such time as they give that information," Trump was quoted by Reuters as saying at a campaign event in Pawleys Island, South Carolina. The news agency pointed out that minutes after making the statement, Trump sent tweets that were designated on Twitter as coming from his iPhone.

The Trump campaign counters the history of bad blood between Trump and the Bay Area, saying it values the tech industry as a driver of economic growth, according to Re/code. The campaign also reports it has won over major tech players.

One strategist working on Trump's campaign in California told Re/code the candidate will emphasize his business credentials and "that's all the world to Silicon Valley."