Can Catholic Cardinals Cancel Kerry Communion?

Isn’t the Catholic Church Kerry a huge favor by starting to make noises that Catholic politicians who, like Kerry, support abortion rights are not fit to receive Communion?
Finally, an issue that even Kerry is unlikely to waffle on and can demonstrate Strong Moral Character in his steadfast — but respectful! — disagreement with his Church. He’s the new Andrew Sullivan, only liberal, and straight!
Let’s be serious; would anybody even remember Kerry actually is Catholic if the Church hadn’t reminded us? This is just the thing to convince the large swath of Church-going America that Kerry views his faith as something more than a line item on his resum