Challenger Rossi concedes.
Read more...King County in Washington may hold the power in the race for Senate majority.
Read more...Winner might not be announced for days.
Read more...The race is among the closest in the country.
Read more...UPDATE: With more than 70% of precincts reporting, Murray holds narrow lead over Rossi.
Read more...Murray and her opponent, Dino Rossi, are fighting for votes in one of the nation's closest Senate races.
Read more...Democratic incumbent Patty Murray and Republican Dino Rossi are neck-to-neck.
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