Former first lady Barbara Bush has died at the age of 92, family spokesman Jim McGrath announced Tuesday.

Former first lady Barbara Bush has died at the age of 92, family spokesman Jim McGrath announced Tuesday.

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Barbara Bush, Republican matriarch and former first lady, dies at 92

Barbara Bush, the matriarch of a Republican political dynasty and a first lady who elevated the cause of literacy, died Tuesday, according to a statement from her husband's office. She was 92.