In this July 31, 2001 file photo, former President Jimmy Carter is seen in a Rose Garden of the White House in Washington. (AP Photo/J. Scott Applewhite, File)

Former U.S. President Jimmy Carter delivers a speech during a meeting held by the Israeli Council of Foreign Relations in Jerusalem, Monday, April 21, 2008. Carter said Monday that Hamas is prepared to accept the right of Israel to "live as a neighbor next door in peace."(AP Photo/Tara Todras-Whitehill)

Former U.S. President Jimmy Carter and his wife Rosalynn are seen during a visit to the Barzilai hospital in the southern Israeli city of Ashkelon, Monday, April 14, 2008. Carter deplored Palestinian militants' attacks on Israel as a "despicable crime" as he toured a rocket-battered town on Monday. (AP Photo/Sebastian Scheiner, Pool)

Former U.S. President Jimmy Carter and his wife Rosalynn are seen during a visit to the Barzilai hospital in the southern Israeli city of Ashkelon, Monday, April 14, 2008. Carter deplored Palestinian militants' attacks on Israel as a "despicable crime" as he toured a rocket-battered town on Monday. (AP Photo/Sebastian Scheiner, Pool)

Former U.S. President Jimmy Carter looks on during a meeting with Noam and Aviva Schalit, not seen, the parents of captured Israeli soldier Cpl. Gilad Schalit, in Jerusalem, Sunday, April 13, 2008. Carter said he feels "quite at ease" about meeting Hamas militants over the objections of Washington because the Palestinian group is essential to a future peace with Israel. Cpl. Gilad Schalit was captured in June 2006 when Gaza militants tunneled under the border, attacking an Israeli outpost and killing two other soldiers. (AP Photo/Sebastian Scheiner)

Former U.S. President Jimmy Carter looks on during a meeting with Noam and Aviva Schalit, not seen, the parents of captured Israeli soldier Cpl. Gilad Schalit, in Jerusalem, Sunday, April 13, 2008. Carter said he feels "quite at ease" about meeting Hamas militants over the objections of Washington because the Palestinian group is essential to a future peace with Israel. Cpl. Gilad Schalit was captured in June 2006 when Gaza militants tunneled under the border, attacking an Israeli outpost and killing two other soldiers. (AP Photo/Sebastian Scheiner)

President Jimmy Carter , right, talks with Pope John Paul II at the White House in Washington in this Oct. 6, 1979 file photo. Carter hosted the first White House by a pope. Pope John Paul II was greeted at Andrews Air Force Base outside Washington by Vice President Walter Mondale. His stay at the White House featured 10,000 guests _ split between separate arrival and departure ceremonies on the North and South Lawns. (AP Photo)

President Jimmy Carter , right, talks with Pope John Paul II at the White House in Washington in this Oct. 6, 1979 file photo. Carter hosted the first White House by a pope. Pope John Paul II was greeted at Andrews Air Force Base outside Washington by Vice President Walter Mondale. His stay at the White House featured 10,000 guests _ split between separate arrival and departure ceremonies on the North and South Lawns. (AP Photo)

Former U.S. President Jimmy Carter greets Nepalis during his visit to a polling station as an election observer, in Katmandu Nepal, Thursday, April 10, 2008. Nepalis voted Thursday in a historic election intended to bring communist insurgents into the country's democratic mainstream and expected to end a monarchy that has ruled for centuries. (AP Photo/Binod Joshi)

Former President Jimmy Carter speaks to reporters after his meeting with United Nations Secretary General Ban Ki-moon at U.N. Headquarters in this photo from Oct. 25, 2007. Speaking to local reporters Wednesday, April 3, 2008, on a trip to Nigeria, the former Democratic president noted that Barack Obama had won his home state of Georgia and his hometown of Plains. "As a superdelegate, I would not disclose who I am rooting for, but I leave you to make that guess," Carter said, leaving little doubt this week about who he'd like to see in the White House next year. (AP Photo/David Karp, File)