…who has forgotten more about canon law than most of us will ever know, writes:
The Pewsitter Petition on Canon 915
Pewsitter.com has published an on-line petition by which Catholics may call upon bishops to withhold holy Communion from Catholic political figures who gravely disregard Church teaching on certain fundamental life issues. The petition invokes canon law in support of some of its propositions. I know nothing about the organization behind the petition, but I feel confident in commenting on its canonical aspects.
Check thou it out.