Ron Rosenblith, a political strategist who had a long association with John F. Kerry and other Democratic officeholders and helped launch the Hotline, one of the first sources of aggregated political news from around the country, died at his home in Durham, N.C….

Mr. Rosenblith began working in political campaigns in 1968, when he was an organizer for the unsuccessful Democratic candidacy of Sen. Eugene J. McCarthy (Minn.). He went on to work on every Democratic presidential campaign through 2004. He also founded a fundraising firm geared toward small donors.