There must be something to that Christine O'Donnell theory, because Joe Sestak invoked her spirit last night in an attack on GOP foe Pat Toomey. Though their battle over such extremities has been going on for some time now.
In a center aisle state, each candidate is seeking to portray the other as a resident of his party's wing. Mr. Sestak invoked former Alaska Gov. Sarah Palin and Delaware Republican Senate nominee Christine O'Donnell -- whose campaign advertising has infiltrated the neighboring Philadelphia media market -- when describing Mr. Toomey.
The Republican, meanwhile, said Mr. Sestak "aligned himself with that very small extreme element of the House," though he notably didn't mention House Speaker Nancy Pelosi -- the GOP's chosen boogeyman of 2010 -- at all during the debate.
Both men appeared poised -- Mr. Sestak much more so than in his primary debate with Mr. Specter -- and stuck to their talking points without notable gaffes.