ANOTHER ARNE DUNCAN EMBARRASSMENT: Education secretary urged his employees to go to Sharpton’s rally. “Russ Whitehurst, director of the liberal-leaning Brookings Institution’s Brown Center of Education Policy, said nothing like this happened when he was a Department of Education program director from 2001 to 2008: ‘Only political appointees would have been made aware of such an event and encouraged to attend.'” And yet Sharpton still couldn’t pull a crowd.