Keystone Phil is a longtime poster here who was apparently saying for years that Santorum had what it took to be a Presidential contender despite losing in 2006 by 18 points. Now that Phil's been proven more or less correct, 'congratulations Phil' is something we say a lot around here.
However, it should be noted that Congratulations Phil was actually the title of a memorable post by resident Romney fanboy Winfield. The congratulations was not for anything Santorum did, but rather for the election to the Senate of Pat Toomey, another of Phil's favorites.