Executives: Presidents, Prime Ministers & Supreme Leaders
- Distinguish parliamentary, presidential, and semi-presidential systems
- Separate the head of state from the head of government across the core countries
- Explain how executives are selected and removed in the six countries
Three ways to organize the executive
Executive systems differ in how the executive relates to the legislature. In a parliamentary system, the prime minister (head of government) is chosen by and accountable to the legislature and can be removed by a vote of no confidence — the United Kingdom is the classic case. In a presidential system, a directly elected president serves as both head of state and head of government for a fixed term, separate from the legislature — Mexico and Nigeria are presidential. A semi-presidential system splits executive power between a president and a prime minister — Russia blends a strong president with a prime minister who runs the government.
Head of state vs. head of government
Two roles that Americans often merge are frequently split abroad. The head of state is the symbolic representative of the nation; the head of government runs the day-to-day administration. In the UK, the monarch is head of state (largely ceremonial) while the prime minister is head of government. In Iran, the roles are unusual: the unelected Supreme Leader holds ultimate authority over the military, judiciary, and media, while an elected president manages the government — but the Supreme Leader outranks the president. In Mexico and Nigeria, the single elected president holds both roles at once.
Selection and removal
How executives gain and lose power reveals a regime’s character. UK prime ministers emerge as the leader of the majority party in the House of Commons and can fall through a no-confidence vote or party revolt. Presidents in Mexico (single six-year term, no reelection) and Nigeria (two four-year terms) are directly elected and removable mainly by impeachment. Russia’s president is directly elected but constitutional changes have extended possible tenure. China’s paramount leader (the General Secretary of the Communist Party, who is also president) is selected internally by the Party, not by voters. Iran’s Supreme Leader is chosen by the Assembly of Experts and serves for life.
In one country the chief executive can be removed at any time by a legislative vote of no confidence; in another the chief executive serves a fixed term and can be removed only by impeachment. Identify the system type of each and name a core country that fits.
- 1.Analyze the first country: removal by a legislative no-confidence vote means the executive depends on the legislature’s ongoing support — a defining feature of a parliamentary system.
- 2.Match a country: the United Kingdom fits, where the prime minister governs only while commanding a Commons majority.
- 3.Analyze the second country: a fixed term with removal only by impeachment means the executive is elected separately and does not depend on legislative confidence — a presidential system.
- 4.Match a country: Mexico or Nigeria fits, each with a directly elected president serving a fixed term.
In the United Kingdom, which official serves as head of government, and how is that person selected?
For every executive question, ask two things: (1) Is the executive accountable to the legislature (parliamentary) or elected separately for a fixed term (presidential)? (2) Are the head-of-state and head-of-government roles combined or split? These two axes classify all six countries.
Iran’s political system is distinctive because ultimate authority over the military, judiciary, and media rests with which official?
Remember term limits by country: Mexico = single six-year presidential term, no reelection (the "sexenio"); Nigeria = two four-year terms. These specific rules are common short-answer targets, so pin them to the country.
Answer the 2 checkpoints as you read.
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