US Republican presidential candidate Sen. John McCain used the status of Jerusalem to attack his Democratic rival, Sen. Barack Obama on Friday, accusing his opponent of flip-flopping on the issue while affirming his own commitment to an "undivided Jerusalem." "I can't react to every comment that Senator Obama makes, because it probably will change," McCain told a crowd of supporters while campaigning in Florida. "The point is Jerusalem is undivided. Jerusalem is the capital," he continued, and, in an effort to offer a practical demonstration of his stance, suggested moving the American embassy to Jerusalem from Tel Aviv. However, McCain qualified his comments by emphasizing that regardless of his position, the status of the city is still subject to negotiation. "The subject of Jerusalem itself will be addressed in negotiations by the Israeli government and people," he said. The Arizona senator's remarks were published in The New York Times on Saturday. On Thursday, the Obama campaign told The Jerusalem Post that the Democratic presidential nominee did not rule out Palestinian sovereignty over parts of Jerusalem when he called for Israel's capital to remain "undivided." Obama had declared on Wednesday that "Jerusalem will remain the capital of Israel, and it must remain undivided," to rousing applause from the 7,000-plus attendees at the American Israel Public Affairs Committee policy conference. But a campaign adviser clarified Thursday that Obama believes "Jerusalem is a final status issue, which means it has to be negotiated between the two parties" as part of "an agreement that they both can live with." "Two principles should apply to any outcome," which the adviser gave as: "Jerusalem remains Israel's capital and it's not going to be divided by barbed wire and checkpoints as it was in 1948-1967."