The DreamWorks trio of David Geffen, Jeffrey Katzenberg and Steven Spielberg are endorsing Bobby Shriver in his race for Los Angeles County Board of Supervisors.

They sent out a fundraising letter earlier this week, noting that during eight years on the Santa Monica City Council, “Bobby worked tirelessly to deliver first-class police and fire protection, clean up Santa Monica Bay and the beaches, create and maintain parks, and house the homeless, particularly military veterans.”

Shriver is running for a seat that encompasses a broad swath of the Los Angeles area, including the Westside, Hollywood and the San Fernando Valley. Also running is former state Sen. Sheila Kuehl, West Hollywood City Councilman John Duran and former Malibu Mayor Pamela Conley Ulich.

Shriver co-founded two Africa-centered philanthropic organizations along with U2’s Bono, aimed at tackling debt, poverty and AIDS on the continent.

The letter from the trio seeks contributions of up to $300 per person, the maximum allowed.