The direct participation of the royal and viceroyal figures in any of these areas of governance is limited, though; in practice, their use of the executive powers is directed by the Executive Council, a committee of ministers of the Crown responsible to the unicameral, elected House of Assembly and chosen and headed by the Premier of Nova Scotia (presently Tim Houston), the head of government. To ensure the stability of government, the lieutenant governor will usually appoint as premier the person who is the current leader of the political party that can obtain the confidence of a plurality in the House of Assembly. The leader of the party with the second-most seats usually becomes the Leader of Her Majesty's Loyal Opposition (presently Iain Rankin) and is part of an adversarial parliamentary system intended to keep the government in check.[10]