After viewing the wall prototypes in an area of the border heavily cordoned off and far from the rallies on the U.S. side, Trump was then expected to address Marines in San Diego before attending a high-dollar fundraiser in Los Angeles, where he'll stay overnight.
The Trump administration seemed stuck on the idea of banning legal immigration as well - in the form of family-based migration and the diversity lottery - and all the bills put forward for a vote in the Senate failed.
The scene was quiet on both sides of the border Tuesday morning as Trump flew to San Diego.
San Diego's Republican mayor criticised Trump's planned short visit, saying the president won't get a full picture of the city. In the evening, Trump will attend a GOP fundraiser in Beverly Hills.
Official details of Trump's first visit to California since being elected have been scant. His visit is only expected to last one night. He also sought to avoid protestors, who greeted Trump from the moment he landed in California. Sessions said the laws, which restrict how local law enforcement can cooperate with federal immigration officials, are unconstitutional and undermine national security.
California has been at the forefront of resistance to the Republican leader's anti-immigration agenda and at odds with his stance on a number of other issues, from gun control to marijuana and the environment.
"These policies release unsafe criminal offenders to prey on innocent people, and nullify the federal law", the president said.
"This is an environmental catastrophe, on top of a misallocation of government resources that could be used for health care or social services", Cody Petterson, president of the San Diego County Democrats for Environmental Action, said of the wall. "THIS MUST STOP!" he wrote.
Trump told reporters then that he was putting himself "in great danger" by coming to the border. He traveled to Laredo - one of Texas' safest cities - weeks after declaring his candidacy.
Jeff Schwilk, founder of San Diegans for Secure Borders, said the City Council's resolution does not reflect the views of many residents, who feel the border is not secure. He added that Border Patrol had "done a fantastic job" in constructing the prototypes.
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