Arkansas was one of twelve states to hold elections Tuesday. In California, Meg Whitman, the billionaire former eBay chief executive, won the Republican nomination for governor after spending a record $71 million of her money on the race. Whitman will face former governor Jerry Brown in the general election. Carly Fiorina, the former Hewlett-Packard chief executive, won the Republican nomination for senator in California. She will face Democratic Sen. Barbara Boxer in November. Meanwhile, incumbent Democratic Congresswoman Jane Harman fought off a challenge from progressive Marcy Winograd.