Later, he stopped in at the nearby Marine Corps Air Station in Miramar, addressing an often-boisterous crowd - and promoting what he called "the largest military buildup since Ronald Reagan and one of the largest buildups we've ever had in the history of our nation".
Trump on Tuesday inspected prototypes on display in California for his "big, attractive border wall".
Targeting the state's governor Jerry Brown, Trump told reporters that California Gov. Trump blasts Schaaf, Brown on California trip Trump saw eight prototypes for his proposed wall, including one with blue steel on top.
He further slammed the Democrat for immigration and tax policy adding that while he thought Brown was a "nice guy" but "has not done the job".
"For the people that say no wall, if you didn't have walls over here you wouldn't even have a country", Trump said at the prototypes.
Simon Byrd tweeted: "I want a see-through wall" 'You mean a FENCE?'
"They can't climb some of these walls - some of them they can and those are the walls we aren't using", Trump said.
"I don't think it's really fair how he has the choice to separate us", said González, a dual citizen who lives in Tijuana and crosses daily to work at a San Diego ramen restaurant.
Betsy DeVos accuses '60 Minutes' of selective editing, omissions after rocky interview
Although DeVos appeared to favor charter schools during her "60 Minutes" interview , she also acknowledged their limitations. Department of Education during the Bush administration and now serves as a senior fellow at the Brookings Institution.
India opt to field after rain delay against Sri Lanka
As it stands, Sri Lanka are ahead in terms of net run rate but today's game against India will be of utmost importance. Suresh Raina (27) and KL Rahul (18) repaired the early damages before being dismissed in quick succession.
Tillerson to Spend Few Hours in Nigeria
Tillerson says Chad has taken important, positive steps to strengthen control over its passports and improve information-sharing. On his part, Mr Tillerson reaffirmed the support of the USA for Nigeria to ensure the speedy recovery of the abducted girls.
A fundraiser President Trump is headlining Tuesday night will take place at the Beverly Park mansion of Shari and Edward Glazer, co-chairman of the Tampa Bay Buccaneers, according to a source familiar with security arrangements for the event.
The visit comes as Trump and his administration have voiced increasing anger at California's refusal to cooperate with federal immigration authorities.
The eight 30-foot-tall models are supposed to be used to help design the wall Trump has promised to build along the U.S. "After you've examined your wall prototypes on the border, I invite you to head north to the Central Valley - the heart of California".
The president's speech went on to touch on human trafficking, calling it "the worst that it's ever been", and "sanctuary city" policies.
"They shield criminals. You can't do that", he said. He will also attend a fundraiser in Los Angeles, where he will stay overnight. But Sanders said Trump has a base of support in the state.
On the other side of the border, in Tijuana, Mexico, residents laughed off the idea the monolithic slabs will stop desperate immigrants.
"But bridges are still better than walls", Brown said. Thousands of risky & violent criminal aliens are released as a result of sanctuary policies, set free to prey on innocent Americans. "In one year we did more damage to ISIS than other administrations, a certain other administration, did in many years", he said.
Trump is expected to spend the night in the Los Angeles area before heading to the St. Louis area on Wednesday.