Robert Menzies, in constructing the Liberal Party, wanted it to be free of the behind-the-scenes big business interests that had controlled the finances and policies of the old United Australia Party, writes Jeffry Babb.The Liberal Party is at the crossroads. It is facing a Labor government determined to transform Australia.Based on historical experience, it has two options: either totally and implacably oppose the Rudd program, which may help a Liberal return to government, if not in one term, …