District 3—the most expensive campaign in San Francisco—just got even more costly, as the SF Realtors dumped $83,000 into a cable TV ad buy attacking candidate David Chiu. Broadcast on ESPN, TNT, Comedy Central and during MSNBC’s Countdown, the ad accuses Chiu, D1 candidate Eric Mar and D11 candidate John Avalos of being Chris Daly’s “hand-picked puppets” who support “legalizing prostitution” and “banning JROTC.” But Chiu strongly opposes Proposition K (which would decriminalize prostitution), having voted against it at the Democratic Central Committee. “These false ads are particularly outrageous because I am a former prosecutor, neighborhood leader and community court judge who fought for years to reduce crime,” said Chiu—who yesterday filed a formal complaint against the Realtors and Comcast Cable. Section 1.163.5 of the SF Campaign and Governmental Conduct Code prohibits campaign ads that intentionally or recklessly cite a false endorsement—and it’s now up to the Ethics Commission to enforce it. D11 candidate John Avalos likewise opposes Prop K.