The Roman Catholic Church's official news service quoted an unnamed Vatican official on Tuesday as saying John Kerry was "not a heretic" for his stance on abortion rights.
The article by The Catholic News Service also quoted an unnamed Vatican official as saying Mr. Kerry was not about to be excommunicated because "you can incur excommunication" automatically "only if you procure or perform an abortion."
The article came after a conservative Catholic canon lawyer who is trying to get Mr. Kerry excommunicated publicized a letter that was drafted at the request of a high-ranking Vatican official, a letter that the lawyer said indicated that Mr. Kerry should be excommunicated because he supported abortion rights.
On Friday the canon lawyer, Marc Balestrieri, who heads a conservative Catholic group called De Fide, released a letter written to him by another American canon lawyer, the Rev. Basil Cole. Father Cole said he had written the letter at the request of a high-ranking official in the Vatican office responsible for matters of church doctrine, the Very Rev. Augustine Di Noia.
The letter said that "if a Catholic publicly and obstinately supports the civil right to abortion, knowing that the church teaches officially against that legislation, he or she commits that heresy" and is "automatically excommunicated."
Mr. Balestrieri said Monday that the letter would bolster a complaint he filed in June with Mr. Kerry's home diocese, the Archdiocese of Boston, accusing Mr. Kerry of heresy and seeking to have him excommunicated.
But on Tuesday, Father Di Noia, an American priest who is highly influential in his position as under secretary of the Vatican's Congregation for the Doctrine of the Faith, took steps to distance himself from the letter. He told The Catholic News Service that "the Congregation for the Doctrine of the Faith has had no contact with Mr. Balestrieri" and that Mr. Balestrieri's "claim that the private letter he received from Father Basil Cole is a Vatican response is completely without merit."
Father Di Noia's remarks to the news service seem to reflect a reluctance by at least some Vatican officials to be perceived as trying to meddle in an American presidential election, experts on the Vatican said.
"I think they know that if they intervene in the election in that direct a manner, it's very problematic diplomatically," said Chester Gillis, chairman of the theology department at Georgetown University.
Efforts to reach Father Di Noia on Tuesday were unsuccessful, but Mr. Balestrieri's and Father Cole's version of events suggest that his office did have contact with Mr. Balestrieri.
On Aug. 30, Mr. Balestrieri said, he went to Rome and met with the Rev. Diaz Pedro Miguel Funes, a member of the Congregation for the Doctrine of the Faith. Mr. Balestrieri said that he asked whether someone who publicly supported abortion rights was guilty of heresy, even if the person was personally opposed to abortion, as Mr. Kerry is.
Mr. Balestrieri said he did not disclose to the Vatican that he was seeking to have Mr. Kerry excommunicated, but it is not clear whether Vatican officials knew about his effort, which received some news media attention over the summer.
In any case, Father Cole, an associate professor at the Dominican House of Studies in Washington, who described Father Di Noia as a friend, said he received an e-mail request from Father Di Noia several days after Mr. Balestrieri's visit.
"I was asked to write a letter as a friend to a friend," Father Cole said. "I had no idea the man was involved in the Kerry thing."
Mr. Balestrieri said that he called Father Di Noia last week to ask him if it was all right to publicize the letter. He said that Father Di Noia told him Father Cole's response was "excellent and solid" and that it could be published.
Father Cole said that last Friday, when Mr. Balestrieri released his letter to a Catholic television station, Father Di Noia sent Father Cole an e-mail message that said something like: "By the way, there was something on television. I'm sorry I got you into this mess. You're going to have people calling you ."
Father Cole said he thought Father Di Noia's comments on Tuesday indicated he was "distancing himself from it as an official." He explained: "There's a distinction in Rome when something's official and when something is off the record. This was off the record."