As Boston law firms lined up to support Massachusetts Attorney General Martha Coakley, the Democratic candidate in the state’s Jan. 19 special election for the U.S. Senate, a lawyer from Duane Morris led the legal team of Republican victor Scott Brown.

Daniel B. Winslow, a friend of Brown’s from Tufts University and Boston College Law School, also had the Republican credentials to be chief legal counsel for Brown’s campaign. Before joining Duane Morris’ Boston office, Winslow was chief legal counsel to former Massachusetts Gov. Mitt Romney from 2002 to 2004. He was a Massachusetts trial court judge from 1995 to 2002.