The Republican party of Massachusetts has released a new Halloween-themed web ad criticizing Democratic Senate candidate Elizabeth Warren, particularly her positions on Obamacare and a balanced budget. "This election season, Elizabeth Warren is masquerading," the text reads. Watch the video below:

According to Real Clear Politics, the poll average shows Warren with a 4.5-point lead over her opponent, incumbent Republican Scott Brown. But a recent Boston Globe poll suggested the race is much tighter.

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