The Treaty of Rome adopted many of the institutional structures of the ECSC but set out to have far greater reach. It tried to combine federalist and intergovernmental ideas. The idea of a United States of Europe had been posed by Sir Winston Churchill in 1946 and was driven forward by Jean Monnet during the 1950s. However, the Treaty of Rome, which set up the intergovernmental Council of Ministers, stopped far short of creating Monnet's vision of a federal Europe.