San Francisco Mayor Ed Lee testifies before the Ethics Commission during suspended Sheriff Ross Mirkarimi's official misconduct hearing at City Hall on Friday, June 29, 2012 in San Francisco. Lee said that he would find it "extremely difficult" to work again with Sheriff Ross Mirkarimi if the suspended lawman gets his job back.(AP Photo/San Francisco Chronicle, Lea Suzuki) NORTHERN CALIFORNIA MANDATORY CREDIT PHOTOG & CHRONICLE; MAGS OUT; NO SALES