Democratic incumbent Patty Murray continues to hold a huge fund-raising edge in Washington state's closely watched U.S. Senate race. New campaign finance reports show Murray has topped the $6 million mark in total donations and has more than $4 million on hand as she prepares to battle Republican Rep. George Nethercutt. Nethercutt, who has moved to Bellevue, Wash., to launch a statewide race, has raised more than $1.8 million and has almost $1.4 million on hand, his campaign said. Campaign finance reports for the three months that ended Dec. 31 are not due until Saturday night, but both campaigns released...