President Obama will once again grace San Francisco with his formidable presence, this time in support of DA Kamala Harris.

Per the White House press release: "On Thursday, October 21, 2010, President Barack Obama will travel to San Francisco, CA to headline events for the Democratic National Committee and District Attorney Kamala Harris. He will depart San Francisco on Friday, October 22."

Last week, if you recall, Obama gave his official endorsement of Harris.