Although no candidate has stepped forward (yet) to challenge [Democrat] Rep. Scott Murphy after his narrow win in the 20th Congressional District, the freshman is building a war chest. The congressman’s staff said today he has $722,108 in the bank after raising $403,280 during the fourth quarter of 2009, Oct. 1- Dec. 31. The full report won’t be out until Jan. 31, but according to press secretary Josh Schwerin, 6,709 contributors gave money to Murphy.