The political class has been waiting for Joe Sestak to start spending the $5 million he has in his campaign fund on a television ad blitz and he is about to oblige them. Pa2010.com reports that Sestak plans to go up on the air with his ads today (April 20). They had better be good. The Delaware County congressman trails Arlene Specter, his rival for the Democratic nomination for the U.S. Senate, by double digits in most of the public polls. The primary is May 18th so Sestak has a lot of ground to make up in just a few weeks.