1. Obama is on the air there now and his invisible army is organizing.
2. Clinton has been the major focus of the national press and the local press; the coverage has been unflattering; her mistakes are accumulating. There has been no corresponding attention on Obama's fitness for the office.
3. Obama spent five consecutive days in the state on a bus tour, and his campaign aggressively bracketed the visit with local news interviews and targeted local advertisements.
4., I don't like the phrase "natural tightening" because I think it's kind of dirty, but we've seen similar Obama "surges" in Ohio and California.
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