The politicians upset by Benedict XVI's remarks regarding their support of abortion putting them in a state that precludes reception of the Eucharist have been taken to task by the bishops http://www.cwnews.com/news/viewstory.cfm?recnum=51287. Now, if only the bishops would continue to speak out.
This question of a politician's standing within the Church came to a head when the Benedict responded to a reporter's question while en route to Brazil. Thank God we have a pope that is not afraid to tell it like it is. There was a time when pope did not deign to even respond to the press. His response is welcome, correct, and timely. One hopes the bishops will follow his lead.
When politicians take and promote positions that clearly contradict established doctrines of the Church, and do so publicly, the pope is obligated to correct them, not only for their benefit, but for the benefit of all Catholics. Let us all hope he continues to speak out on this issue.