Mr. Brown kept mum on Mr. Romney, his one-time mentor when they were in state politics together, and avoided mentioning party affiliation. The Massachusetts race is among a handful that could determine which party controls the Senate.
http://www.nytimes.com/2012/09/21/u...rren-spar-in-massachusetts-senate-debate.html
http://www.nytimes.com/2012/09/21/u...rren-spar-in-massachusetts-senate-debate.html