Yes, in the 2008 election 25 precincts voted 100% for Obama over McCain. Then in 2012, 72 precincts voted 100% for Obama over Romney. The FEC sent agents to one precinct and found that one of the voting machines had already posted 2100 votes entered for Obama in the morning BEFORE the polling place opened to the public.
This has been going on for decades. Numerous Pennsylvania Republican Governors have been unable to do anything about it. I wish there was a way to throw Filthadelphia out of PA