Update 6:56 p.m.

Tensions are high at a Southern California park where demonstrators for and against Donald Trump gathered near a fundraiser attended by the president.

A few hundred people rallied Tuesday evening in Beverly Hills, including anti-Trump protesters who hoisted signs that read "Treason," ''Impeach" and "Trump U R Fired."

At one point a man wearing a red "Make America Great Again" hat claimed he had been hit by a protester on the other side. Police stepped in to diffuse the situation.

Jennifer Medina says she attended the rally to speak out against Trump's immigration policies. She was among a group of protesters who chanted "Say it now, say it clear, immigrants are welcome here."

President Donald Trump is spending his evening in Southern California at a high-dollar fundraiser hosted by the co-chairman of the Tampa Bay Buccaneers.

Guests are paying up to $250,000 to attend the event held at the Beverly Hills home of Ed and Shari Glazer.

The money raised will go to a joint fundraising committee that benefits Trump's 2020 re-election campaign and the Republican National Committee.

Los Angeles is the second stop of Trump's maiden visit Tuesday to the state as president. He spent the afternoon in San Diego touring prototypes for his stalled border wall.

The Los Angeles Police Department is warning about traffic snarls along the president's route to Glazer's home.

Update: 2:45 p.m.

President Donald Trump says there may someday be a "space force" fighting alongside the Air Force, Army and other branches of the military.

Trump was speaking Tuesday about his administration's investments in space exploration to members of the military when he said that space is becoming a "war-fighting domain."

He says his idea of a new space force had started as an off-the-cuff comment, but he decided it was a great idea.

Trump also says that "very soon we're going to Mars," and that that wouldn't be happening if his 2016 rival, Hillary Clinton, had won.

Trump addressed Marines and other service members at an air base in San Diego after visiting his border wall prototypes.

President Donald Trump is telling U.S. troops that he's overseeing a massive military buildup, praising soldiers for pushing themselves to "new heights of excellence."

Trump said Tuesday at California's Marine Corps Air Station Miramar that the nation's military had been "asked to do more with less" for too long.

The president says he remains optimistic about a new U.S. effort to engage with North Korea. Trump says the U.S. is "prepared for anything" but believes "something positive will happen." Trump has agreed to meet with North Korean leader Kim Jong Un this spring.

Trump is also pointing to American efforts to lead in space. He predicts that "very soon we're going to Mars" and adds that "you wouldn't be going to Mars" if his opponent, Hillary Clinton, had won the 2016 election.

Update 1:20 p.m.:

President Donald Trump says he has a "great relationship" with Mexican President Enrique Pena Nieto.

Trump calls Pena Nieto a "wonderful guy" and says they're trying to work things out. Trump adds: "We'll see whether or not it happens."

Relations between the U.S. and Mexico have been deeply strained since Trump took office vowing to build a Southern border wall to stop illegal immigration. Trump insisted during his campaign and throughout his presidency that Mexico will pay for the wall. Mexico insists it will not pay.

Trump visited Pena Nieto in Mexico during the 2016 campaign. But Pena Nieto twice has canceled plans to meet Trump at the White House because of Trump's insistence that Mexico pay for the wall.

Trump commented Tuesday in San Diego after viewing prototypes for the border wall.