Congressman Jared Moskowitz’s endorsement of Broward School Board member Torey Alston generated an uproar among some key Democratic constituencies. On Tuesday, Moskowitz withdrew his endorsement. Democrat Moskowitz knows Republican Alston well; they served together as appointees on the same commission. But some Democratic Party activists in Broward were outraged when they learned of the Moskowitz endorsement in recent days — and of a flyer that listed Alston as among the people scheduled to appear at a chapter of the conservative Moms for Liberty, which is loathed by many Democrats. Moskowitz is the highest-profile Democrat listed as a supporter of Alston on the School Board candidate’s website.