Democratic Senate candidate Scott McAdams doesn't just have to campaign to win over undecided voters. He also needs to stop people who might have otherwise helped make up his base from going for Sen. Lisa Murkowski's write-in effort. Polls released last week show the Republican Murkowski drawing significant support among Democrats and independents who might otherwise vote Democratic. "There were two schools of thought prior to (Murkowski) jumping in," said Anchorage pollster and political consultant Ivan Moore. "The first was that Lisa would split the Republican vote and lead to the Democrat winning. The second was that Lisa would basically...