Hillary Clinton leads Barack Obama, but within the margin of error in Nevada. Mitt Romney leads John McCain among Republicans. [ARG]

McCain leads Mike Huckbee 29-23 in South Carolina. [C-SPAN/Reuters/Zogby]

Huckabee and McCain are tied for first place in North Carolina. Obama leads Clinton, but just slightly inside the margin of error. [Survey USA]

And here’s a Massachusetts poll that says Romney leads McCain among Republicans, but if a Republican were to get into the White House, Massachusetts voters as a whole prefer McCain over Romney, and by a wide margin. Also, despite John Kerry’s endorsement of Obama, Clinton still leads Democrats in Massachusetts. [State House Poll]

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