The new party won the third largest number of seats in the 1961 elections but was not invited into the coalition, and Rosen lost his ministerial position. In order to consolidate opposition to Mapai's hegemony within Israeli politics, the Liberal Party merged with Herut to form Gahal. Rosen, however, was unhappy with the merger, and led a breakaway of seven MKs to found the Independent Liberals. He was elected to the sixth Knesset but resigned from the Knesset on December 23, 1968, and retired from politics. His departure from the political stage was greeted by one newspaper as, "The end of the aristocracy" and in another by a cartoon captioned: "Another Channukah miracle! ... An MK resigns because of age."