When the New York courts ruled decisively in favor of the claim of DeLeon, Kuhn and the Regulars in the matter of the ownership of the name logo and publication of the Socialist Labor Party against the claim of the dissidents, the Rochester group changed the name of their organization to Social Democratic Party of America, anticipating a rapid merger with Berger, Debs and the Midwestern organization of the same name. The Eastern group established party headquarters in Springfield, Massachusetts and became known as the Springfield SDP in distinction to the Chicago SDP.