ONTARIO >> President Trump supporters shut down a town hall meeting featuring the new state attorney general Thursday night.

At two stops in the Inland Empire Thursday, California Attorney General Xavier Becerra pledged to fight for Californians who have never been able to experience the American dream.

It was a message that wasn’t received well in the second stop, where protesters shouted him down and cut short the two-hour event just before the 45-minute mark.

• Videos: Clash at Inland Empire Town Hall | Becerra introduced at town hall

Before Becerra could begin, a group of Trump supporters stormed the meeting at Chaffey High, chanting, “Shame on you.” A webpage advertising the protest called out Becerra for not supporting President Donald Trump’s immigration initiatives.

Doors opened at 5:30 p.m. in Ontario, and Trump supporters carrying signs with the president’s name and saying “America first,” stormed the room. While the town hall kicked off on time at 6 p.m., the protesters continued to interrupt the proceedings. Becerra was introduced to simultaneous cheers and boos.

Ontario police were on hand.

Several supporters left, muttering that they couldn’t hear anything.

Just before 6:45 p.m., the event came to a halt. The protesters continued to chant and audience members exited.

• Photos: Protesters take over town hall meeting

Earlier in the day, Becerra spoke with people gathered at San Bernardino Valley College.

“I look forward to working with you to prove to a lot of Californians, and quite honestly, a lot of people in America, that we’ve got their back. I hope you’ll join me in that effort.”

Becerra, California’s first Latino attorney general, toured Southern California on Thursday. Prior to his appointment in January, Becerra spent two years in the California State Assembly and 24 years in the House of Representatives. He has pledged to push back against the Trump administration’s policies.

“They’ve given me the keys to something very exciting, and I know what there is to do,” he said.

The son of immigrants himself, with his parents coming from Jalisco, Mexico, Becerra said earlier in San Bernardino his rags-to-riches story is the story of many in the Inland Empire.

“I never wore a pair of Converse growing up or had a pair of Levi’s jeans. I always had the knockoffs, the stuff that sort of looked like it, but wasn’t the real deal,” he said. “But now, I’m decked-out, man.”

Although he never explicitly mentioned Trump or his administration’s crackdown on immigration violations, Becerra said his office was an advocate for minorities and other historically marginalized communities.

“We have to let a whole bunch of folks, who never got to experience the best parts of America, we’ve got to tell them ‘we’ve got your back,’” he said. “Whether you’re the first in your family to get a college degree, whether your parents can’t believe that you’re getting to walk through the doors of halls that they could never even walk in, let alone drink from the same water fountain, we’ve got to let folks know: We’ve got your back.”

And contrary to Trump’s June 2015 statement that Mexico was “not sending their best” citizens to America, Becerra said those communities make America a better place.

“America absorbs who we are and becomes better. Diversity in this country makes it so much better,” he said. “Even though, for the longest time, it wouldn’t let so many of us be part of this country, we figured it out, we found a way.”

Assemblywoman Eloise Gómez Reyes, D-Colton, introduced Becerra at his stop in San Bernardino.

“You’re all committed to something good in the Inland Empire, and I’m glad that I get to be part of it,” she said, to the about 200 local elected officials, community activists and others crowded into the conference room.

“He has fought for working families,” she said. “He has fought for the vitality of Social Security and Medicare.”

And, the attorney general said, he’ll continue to fight for the interests of Californians.

“We got your back,” Becerra said.

And just as Becerra went from sharing a one-room home with his family as a child to introducing his parents to President Bill Clinton, he said, Inland Empire immigrants and other marginalized communities have the potential to achieve great things.

“I know that is you, and your parents, and your children as well. I say to you, it is your story as well. And that’s what’s going to make us strong,” Becerra said. “We’ve got your back.”

Conservative groups shared Becerra’s itinerary, saying he “intends to meet with local sheriffs, calling upon them to oppose the Trump administration’s new immigration policies.”

In San Bernardino, there was only one protester: Inland Empire activist Tressy Capps, who held up a sign reading “No, no, no sanctuary cities!” during Becerra’s speech. She was specifically concerned that Becerra may end up supporting Senate Bill 54, which would keep California’s law enforcement agencies from cooperating with federal immigration agents, making California a “sanctuary state”for undocumented residents.

Trump has repeatedly attacked California and its existing sanctuary cities.

“Sanctuary cities is not the way to go,” Capps said after Becerra’s speech. “This is just protecting people who come in illegally and further facilitating their lawlessness.”

Staff photographer Jenn Maher contributed to this report.