Joan Mondale

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Vice President Joe Biden pays tribute to Joan Mondale at her memorial service at Westminster Presbyterian Church as former President Jimmy Carter, right, waits to speak, Saturday, Feb. 8, 2014 in Minneapolis. Joan Mondale, 83, died Feb. 3. (AP Photo/Jim Mone)

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** FILE ** Former President Jimmy Carter pays tribute to Joan Mondale at her memorial service at Westminster Presbyterian Church, Saturday, Feb. 8, 2014 in Minneapolis. Joan Mondale, 83, died Feb. 3. At right is Vice President Joe Biden who also spoke. (AP Photo/Jim Mone)

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Vice President Joe Biden pays tribute to Joan Mondale whose urn sits on a table in front at her memorial service at Westminster Presbyterian Church, Saturday, Feb. 8, 2014 in Minneapolis. Joan Mondale, 83, died Feb. 3. At right is Vice President Joe Biden who also spoke. More than 1,000 were in attendance according to church officials. (AP Photo/Jim Mone)

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Former Vice President Walter Mondale gives thanks to Emily Galusha after she delivered her remembrance for former second lady Joan Mondale at her memorial service at Westminster Presbyterian Church, Saturday, Feb. 8, 2014 in Minneapolis. Galusha is a fellow artist to Joan Mondale who was known affectionally as Joan of Art. Seated left are former President Jimmy Carter and former first lady Rosalynn Carter. (AP Photo/Jim Mone)

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Former Vice President Walter Mondale is followed by former first lady Rosalynn Carter and former President Jimmy Carter as they arrive at the memorial service for his wife, Joan Mondale, at the Westminster Presbyterian Church in Minneapolis on Saturday, Feb. 8, 2014. Joan Mondale, 83, died on Feb. 3. (AP Photo/Jim Mone)

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Former Vice President Walter Mondale arrives at the memorial service for his wife, Joan Mondale, at the Westminster Presbyterian Church in Minneapolis on Saturday, Feb. 8, 2014, followed by former President Jimmy Carter and former first lady Rosalynn Carter. Joan Mondale, 83, died Feb. 3. Seated at left, is son Ted Mondale. (AP Photo/Jim Mone)

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Former Vice President Walter Mondale, second from left, is accompanied by his son Ted, left, and former President Jimmy Carter and former first lady Rosalynn Carter at the memorial service for his wife, Joan Mondale, at the Westminster Presbyterian Church in Minneapolis on Saturday, Feb. 8, 2014. Joan Mondale, 83, died on Feb. 3. (AP Photo/Jim Mone)

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Former Vice President Walter Mondale arrives at the memorial service for his wife, Joan Mondale, at Westminster Presbyterian Church, Saturday, Feb. 8, 2014 in Minneapolis. Joan Mondale, 83, died last Feb. 3. At left is son Ted Mondale. (AP Photo/Jim Mone)

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Vice President Joe Biden, left, joins former Vice President Walter Mondale and his family for the memorial service for Joan Mondale, at Westminster Presbyterian Church, Saturday, Feb. 8, 2014 in Minneapolis. Seated with Mondale, second from left, is son Ted, left, former first lady Rosalynn Carter, former President Jimmy Carter and Mondale son William, right. Joan Mondale, 83, died Feb. 3. (AP Photo/Jim Mone)