The front page of Salon.com has an article today that says “Some bishops, perhaps ambitious for Vatican approval, have announced that they will deny the sacraments to Kerry because of his attitudes on abortion and civil unions for gays.”
An article from last year from some Catholics steaming over Kerry and Kennedy’s being allowed to take communion.
Other sources all have the same quote in common, regarding the legailty of denying communion under canon law: “the Archbishop can deny Communion to anyone he wants.”