Complex sentence: When Hallstein put forward his proposals, the Council was already troubled and then-French President, Charles de Gaulle, was sceptical of the rising supranational power of the Commission and accused Hallstein of acting as if he were a head of state.
Split into simpler sentences: When Hallstein put forward his proposals, the Council was already troubled. Then-French President, Charles de Gaulle, was sceptical of the rising supranational power of the Commission and accused Hallstein of acting as if he were a head of state.