McCain's mother makes appearance at Peanut FestivalGrandma Power! SUFFOLK, VA. (WAVY.com)-- Amidst the sights and sounds at the Suffolk Peanut Festival came a taste of politics.At a stretch of white tents, voters picked up signs for the Democrats and signatures for the Republicans.Senator John McCain's mother, Roberta greeted voters at the Republican tent. Miki Miller watched as the 96-year-old paid special attention to the children, those whose future could be in the hands of her son. "She was asking some of them if they knew their multiplication tables you know. She hoped their handwriting was better than her's because we were having her sign stuff...