Two Milwaukee aldermen says this is not a time where City Hall should lack leadership.  A letter from Bob Donovan and Mark Borkowski asks Mayor Tom Barrett to step down if he decides to run for governor.  The letter suggests too many city government agencies have been touched by scandal and mismanagement in recent months for Milwaukee to have a mayor who’s attention is elsewhere.  They write the city “deserves a full-time mayor all of the time.”  They pointed to problems like the controversial lead program, the firing of the executive director of the Fire and Police Commission, and the inability to improve relations with state government.