The prime minister is often, but not always, a member of parliament[clarification needed] and is expected with other ministers to ensure the passage of bills through the legislature. In some monarchies the monarch may also exercise executive powers (known as the <answer>royal prerogative</answer>) that are constitutionally vested in the crown and may be exercised without the approval of parliament.
What is it called when a monarch has a share of executive powers?
royal prerogative