Republican Senator Scott Brown and his Democratic challenger Elizabeth Warren got right down to business in their second debate for the U.S.. Senate last night, heard live on WHMP. The two faced off before a wound-up audience at UMass-Lowell in a free-wheeling discussion moderated by TV journalist David Gregory. While Brown questioned Warren's character and integrity, Warren painted Brown as a friend of the wealthy who isn't as independent as he makes himself out to be. The two face off again October 10th in Springfield. WHMP will carry the Western Mass. debate.