Supporters of the idea point to the United States as the model to follow. They argue that a strong president, elected separately from the legislature, offers stability, decisiveness and clarity of command. In their telling, America’s system is tailor-made for a large, diverse nation, firm at the centre, yet respectful of federal autonomy. Supporters of the idea point to the United States as the model to follow. They argue that a strong president, elected separately from the legislature, offers stability, decisiveness and clarity of command. In their telling, America’s system is tailor-made for a large, diverse nation, firm at the centre, yet respectful of federal autonomy.