The Vatican is scrambling to prevent any misinterpretation of Pope Benedict's remarks pertaining to the excommunication of politicians who voted to legalize abortion in Mexico. No, said Rev. Lombardi, the pope is not planning to excommunicate anyone, but "legislative action in favor of abortion is incompatible with participation in the Eucharist". This has a feeling of deja vu surrounding it, given the attempt of some on the American right to inject this into the presidential election of 2004, an unconscionable attempt to exploit and politicize the Eucharist.
Everything I have to say on the matter is here. I have nothing to add to what I already wrote back in January.