The idea that the position of the British PM and the US president are converging, with the PM rising above their party to become a significant political force in their own right
The cabinet has seen a resurgence of its authority this century, as a reaction to major decisions being made by the PM and their close team rather than the full cabinet
Evidence suggests that the steady growth in the resources at the disposal of the prime minister has made the quality of ministers, and that of government decision-making, worse not better
The influence and impact of the monarch remains substantial, and should not be ignored when considering theories of modern-day prime ministerial predominance