Weren’t the unions promising to get their members to cross-register as Republicans and carry Spectre thru Pennsy’s closed primary, if he’d just do this one thing for ‘em?
No doubt Specter has already had secret meetings with the unions telling them to back off on this so that he wins the primary after which he will change his mind.
And the unions will go along with it, because they don’t want to run against Toomey.
Pennsylvania politics is dirty, real dirty. The Republican establishment is a bunch of RINOs and will do whatever is necessary to stay in control. Specter is vital to them, and they and Specter will deal with the devil if necessary.