Wondering what all of that security in SF was for on Saturday? Well, Vice President Joe Biden was in town, showing face at a private party. (Matt Baume has footage of his royal arrival right here.) See, Biden "swung by Pacific Heights Saturday, speaking at a $5,000-a-plate fund-raiser for U.S. Sen Barbara Boer's re-election campaign," reports SFGate. The Democrat from the Bay Area is hoping to win her third term, running against former HP CEO, breast cancer survivor, and retail-vendor-to-Iran Carly Fiorina. In related vice presidential news, Vanity Fair journalist and future Playgirl model Levi Johnston claims that crazy Alaskan Sarah Palin referred to her son Trig as "my little Down's baby" and "the retarded baby." Oh Sarah, how we've missed you.