Another analogy is Northern Ireland Unionism. They did everything to oppose peace, then in the late 90's the leader (Trimble) of their 'respectable anti-peace' party signed a peace deal and was voted out the next election, then finally the Unionist 'ultra-ultra-loyal' party leader (Ian Paisley) saw the peace deal through in the late 00's, became first minister, and was 'retired' from the party he created as well as the ministry he formed. Trimble is part of Bibi's 'flotilla' enquiry group. They may be friends. Northern Ireland Unionism proves that the ultra-right can completely change their view on peace deals, for whatever reason.
Iran deal opposition grows among U.S. Republicans, Reuters poll shows (Reuters)