Political Institutions is the heaviest unit, 22–33% of the multiple-choice section. It covers how the six course countries organize their executives, legislatures and courts, and how each institution checks, or fails to check, the others. Expect many comparisons: who is head of state, who can remove whom, and which bodies limit the legislature or the courts.
- parliamentary system
- A system that combines lawmaking and executive power: the legislature selects the head of government and cabinet and can remove them. The United Kingdom is the course example.
- Example: After a UK general election, the leader who can command a majority in the House of Commons becomes prime minister and picks ministers from Parliament.
- checks and balances
- Arrangements that let each branch of government limit the others, so no single institution can act without restraint.
- Example: Nigeria's president can withhold assent from a bill, but the National Assembly can override the veto with two-thirds votes in each house.
- civil service (bureaucracy)
- The career officials and government agencies that carry out laws and policies day to day under the direction of the chief executive.
- Example: China's premier, Iran's president, Russia's prime minister and the UK prime minister each oversee their country's civil service.
- term limits
- Legal caps on how long or how often a leader may hold office. They check executive power and bring new ideas but can force out good leaders and disrupt policy.
- Example: Russia's 2020 amendments capped presidents at two terms in total but restarted the count for the incumbent, who then ran again in 2024.
- vote of no confidence
- A legislative vote declaring that the government no longer has the legislature's support. In a parliamentary system, losing it forces the government to resign or call an election.
- Example: In 1979 the UK government lost a no-confidence vote by a single vote, 311 to 310, and a general election followed.
- unicameral legislature
- A legislature with only one chamber, so a bill needs the approval of a single body.
- Example: China's National People's Congress and Iran's Majles each have one chamber, though other bodies limit what both can do.
- legislative independence
- The degree to which a legislature is free to use its powers without control by other branches or institutions.
- Example: The UK Commons can bring down a government, while China's NPC rarely rejects anything the party proposes: high versus low independence.
- judicial review
- The power of courts to strike down laws or government actions that violate the constitution.
- Example: Constitutions in Mexico, Nigeria and Russia grant judicial review, but how freely courts use it against the government differs widely.
- judicial independence
- Courts' freedom from control by other branches. It depends on their power to overrule, how judges are chosen, term length, required qualifications and how judges can be removed.
- Example: Since 2020, Russia's Federation Council can remove Constitutional Court judges on the president's proposal, which weakens the court's independence.
- presidential system
- A system with separate fixed-term popular elections for the legislature and the president, who is both head of state and head of government; the cabinet answers mainly to the president.
- Example: Mexico and Nigeria elect president and congress separately; ministers serve at the president's pleasure, and congress can't remove them with a no-confidence vote.
- divided government
- Control of the executive and the legislature by different parties. It is possible where the two are elected separately and can slow or block policy.
- Example: In 1997 Mexico's PRI lost its Chamber of Deputies majority for the first time, so the PRI president needed opposition votes to pass laws.
- General Secretary of the Chinese Communist Party
- The top leader of the Communist Party of China and the most powerful post in the country. Changes in top leadership are settled behind closed doors.
- Example: One leader usually holds this post, the presidency and the chair of the Central Military Commission at once, joining party, state and army power.