Updated, edited from earlier post
After speaking in Costa Mesa (below), President Obama apparently is overnighting in the Century City-Beverly Hills area, traffic started backing up mid-afternoon in advance of street closures in and around Avenue of the Stars. Richard Simon of the Los Angeles Times writes of California’s history of hosting presidents, including past stays at the Century Plaza Hotel. Bill Clinton was ubiquitous in California: He visited the state more than 70 times as president.
Obama stayed at the Beverly Hilton Hotel, continuing a tradition that dates back to John F. Kennedy.