Leaders may have a single view and be the sole centre of power in the executive branch, but that does not mean the leader’s remaining in office will somehow shift power away from the other branches. The separation of powers is constitutionally protected in most countries, and leaders’ powers will be circumscribed by these whether term-limited or not. In the example of Tony Blair and Gordon Brown while Blair was centralizing power in Number 10 Brown at the Treasury always had an independent voice and enough power to prevent the prime minister getting his way on domestic policy.