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7. Olympia Snowe and Susan Collins
7. Olympia Snowe and Susan Collins
Susan Collins (left) and Olympia Snowe

This Republican duo from Maine doesn't always vote with the GOP (see: the stimulus), and the Democrats need their votes on health care and energy to pass their agenda.

NEXT: 8. Carol Browner
Last updated September 10 2009: 3:38 PM ET
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