ST. LOUIS — Roman Catholic Archbishop Raymond Burke, who made headlines last presidential season by saying he'd refuse Holy Communion to John Kerry, has his eye on Rudy Giuliani this year. Giuliani's response: "Archbishops have a right to their opinion."

Burke, the archbishop of St. Louis, was asked if he would deny Communion to Giuliani or any other presidential candidate who supports abortion rights.

"If any politician approached me and he'd been admonished not to present himself, I'd not give it," Burke told The Associated Press Wednesday. "To me, you have to be certain a person realizes he is persisting in a serious public sin."

Asked if the same would apply to politicians who support the death penalty or pre-emptive war, he said, "It's a little more complicated in that case."

Asked about Burke's comments Wednesday while campaigning in New Hampshire, Giuliani said:

"Archbishops have a right to their opinion, you know. There's freedom of religion in this country. There's no established religion, and archbishops have a right to their opinion. Everybody has a right to their opinion."

Burke says that anyone administering Communion — ordained priest or lay minister — is morally obligated to deny it to Catholic politicians who support an abortion-rights position contrary to church teaching.

Burke published an article in April in a church law journal that explored whether it is ever appropriate to deny Communion. Some U.S. bishops interpret church teaching to say that an individual examination of conscience, not a minister, should dictate whether a person is worthy to receive the sacrament.

Burke said denial of Communion is not a judgment. "What the state of his soul is is between God and him," he said.

The nation's bishops are expected to discuss the question again in meetings next month. Burke said he has made no policy proposal, simply laid out his thoughts in the article.

Burke will not be attending the bishops' meeting because of a prior commitment.

A number of other Catholic presidential candidates also have abortion-rights stances in apparent conflict with church teaching. Giuliani is the only Catholic among the top-tier candidates.