When it comes to Californians, Trump is never at a loss...

President Trump is totally and completely devoted to campaigning every hour of every day and in every location where there is a political contest. And he’s just as committed to insulting any of his opponents, which he seems to find in California with startling regularity.

First it was House Democratic leader Nancy Pelosi. Then it was Rep. Maxine Waters. At some point he fixated on Gavin Newsom, probably because someone duped him into endorsing the multistate-traveled Republican candidate John Cox for California governor and now Trump is worried about losing face in November.

Congresswoman Maxine Waters, an extraordinarily low IQ person, has become, together with Nancy Pelosi, the Face of the Democrat Party. She has just called for harm to supporters, of which there are many, of the Make America Great Again movement. Be careful what you wish for Max! — Donald J. Trump (@realDonaldTrump) June 25, 2018

Lately, Trump has zeroed in on Sen. Dianne Feinstein, whose name he’s unwilling or unable to pronounce correctly. Trump all but accuses Feinstein of leaking Christine Blasey Ford’s letter outlining her attempted-rape allegation against Brett Kavanaugh. It’s an absurd charge if you know Feinstein — that’s just not how she operates — but Trump, as we’ve all learned, couldn’t care less about the truth.

And that “lock her up” chant that Trump’s Iowa fans cut loose with the other night when he mocked her? Maybe people laugh it off now because it’s become so commonplace at Trump rallies, first about Hillary Clinton and now Feinstein.

It should not be laughed away. Of all the many profoundly anti-American features of the Trump presidency, the notion of imprisoning one’s political opponents might be the most disturbing of all.

The challenge: A month ago, South Carolina GOP Sen. Lindsey Graham was considered a Trump skeptic. Republican Sen. Jeff Flake of Arizona was a voice of sanity, if perhaps not a vote for sanity. Sen. Susan Collins, R-Maine, was viewed as a standup appreciator of humankind.

When it counted, however, they all fell in line with the Republican battle strategy as laid out by Senate Majority Leader Mitch McConnell: Give them nothing. Take over the courts at every level, give Republicans and their kind a tax break, wipe out regulatory structures for consumers and the environment, then sit back and enjoy 30 years of control.

And it will happen — unless we work like hell to get the speakership back for Nancy Pelosi, who then will have the awesome responsibility of saving the nation. In the words of the late Raiders boss Al Davis, “Just win, baby!”

Salesforced: The San Francisco political scene got a bit more complicated when tech giant Marc Benioff decided to get directly involved in the issue of homelessness. He’s pouring a couple of million of his and his company’s dollars into passing Proposition C, which would tax big companies to raise $300 million a year for homeless programs in the city.

Whenever nonelected types who report to no one but themselves decide to get in the middle of campaigns, disaster is possible.

Mayor London Breed has made it clear that the $300 million that the city already spends on homelessness is enough — the problem is that no one has been able to figure out how to spend it in the right places. At times, the city hasn’t been sure where the money is even going.

So is the answer to dump another $300 million into the pot? It would be smarter to figure out first what’s working and what isn’t.

Lack of government funding has never been the problem when it comes to homelessness in San Francisco. Spending what’s there efficiently has been the challenge. London has been in office for all of three months or so. To paraphrase John Lennon, all I am saying is give Breed a chance.

Movie time: “The Sisters Brothers.” An old-fashioned Western filmed in old-fashioned style. It’s a thought-provoking movie, not a shoot-em-up. Well worth checking out, but be warned: This is not a barn burner.

“Monsters and Men.” It tries to tell the story of African Americans’ troubles with police, but it’s both hard to follow and unenlightening.

There were two other people in the theater for the show I caught. Clearly we were the only three people who didn’t get the word, “Don’t waste your money.”

Want to sound off? Email: wbrown@sfchronicle.com