The Liberal Party must not allow itself to become a haven for extremists, writes BRIAN COSTAR AS THE Liberal Party begins the painful but essential task of reconstruction after Saturday’s electoral catastrophe, it could do worse than heed the words of the late Victorian Liberal Party minister Walter Jona. In his book People, Parliament and Politics Jona lamented those on his side of politics who called themselves “conservatives”. He then asked: “Why can’t all Liberals simply say ‘we in the great Australian Liberal Party’ and be thoroughly proud of saying it that way?” Why indeed? While it is not unusual for a political party long in opposition to drift towards its ideological extreme - the L...