Maria Shriver: Katherine Schwarzenegger’s dog makes me a happy 'grandmother'

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Shriver lives with her children’s two dogs, Maverick and Champ. Maverick is her daughter Katherine’s dog and the subject of Katherine’s book, “Maverick and Me,” while Champ is her son Christopher’s dog. In this episode of "My Pet Tale," Shriver calls herself a “grandmom” to the two pups and says taking care of her children’s pets is preparing her to be a grandparent.