Donald Trump heads to California today for his first visit there as president. Trump will speak to troops in San Diego and is expected to view some prototypes for a border wall. White House Press Secretary Sarah Sanders said border security is essential and the wall is a big part of that. A massive wall on the U.S.-Mexico border has been one of Trump’s top priorities since he first started running for president. After leaving San Diego, Trump heads for Beverly Hills to headline a big Republican fundraiser. “Politico” reports that ticket prices for the fundraiser are running as high as 250-thousand dollars.