Three Key Battleground States Within Polling Margin of Error

Three Key Battleground States Within Polling Margin of ErrorDonald Trump has a slight lead in at least one key battleground state and is within the polling margin of error in three others. That marks an increase in his support since early October, when Clinton had 46 percent support and Trump had 44 percent in the state. In Arizona, Trump has 49 percent support and Clinton has 44 percent, though that is within the margin of error of polling.

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