There are a few:
On Saturday, PA's newly Democratic Senator, Arlen Specter, was in town to address the Pennsylvania Democratic State Committee but first he had to face Labor.
SEIU, PA AFL-CIO, the Allegheny County Labor Council, the Communication Workers of America, Local 13000 and others rallied for the Employee Free Choice Act (EFCA) before the committee meeting and Specter spoke to the union members. There's video of his speech below courtesy of a Daily Kos diary.
Specter said that he is "'committed to finding an answer' on legislation making it easier to organize unions" and "If you want to become elected in this state, you have to come to labor, and I know that.