In his words, Arch. Wuerl states "Why I Won't Deny Pelosi Communion"
Acc. to Arch. Wuerl, "there's a question about whether this canon'' – the relevant church law – "was ever intended to be used'' to bring politicians to heel. He thinks not. "I stand with the great majority of American bishops and bishops around the world in saying this canon was never intended to be used this way.''
In http://www.catholic.org/international/international_story.php?id=31984 Arch. Burke says, ""The Church's law is very clear, the person who persists publicly in grave sin is to be denied Holy Communion, and it [Canon Law] doesn't say that the bishop shall decide this. It's an absolute."
In the link below, you can read from a canon lawyer how that Church law was misinterpreted by Arch. Bishop Wuerl.
Vatican Official: Bishops Have no Choice But to Refuse Communion to Pro-Abort Politicians
Worthiness to Receive Holy Communion. General Principles