Politics & Government
How Semi-Presidential Systems Allocate Foreign Policy Competences
Quick fact
In semi-presidential systems like France, during 'cohabitation'—when the president and the parliamentary majority are from opposite parties—the prime minister can take the lead in foreign policy, overriding the president's traditional dominance.
Why this is interesting
You've heard of the French president shaking hands with world leaders, but did you know that sometimes the prime minister holds the real foreign policy power?
Read the full explanation
Understanding How Semi-Presidential Systems Allocate Foreign Policy Competences
Imagine a company with two CEOs: one directly elected by shareholders, the other chosen by the board. That's essentially a semi-presidential system. It has a president elected by the people and a prime minister who answers to parliament. In foreign policy, these two executives share power, but the distribution isn't always equal. Typically, the president takes the lead on high-level diplomacy and defense, while the prime minister handles day-to-day international economic and trade matters. But the exact split depends on the country's constitution and political practice. For example, in France, the president is often seen as the 'captain' of foreign policy, but during cohabitation, the prime minister can challenge that leadership.
A deeper explanation
The mechanism behind this allocation lies in the constitutional design that grants each executive distinct sources of legitimacy. The president, being directly elected, claims a national mandate often associated with representing the nation abroad—think of it as the face of the country. The prime minister, responsible to parliament, embodies the legislative majority's will, which matters for policies needing parliamentary approval, such as treaties or foreign aid budgets. The constitution usually gives the president powers like commanding the armed forces and negotiating treaties, but often requires parliamentary ratification for treaties to take effect. During cohabitation, the prime minister's parliamentary support can block presidential initiatives, effectively shifting foreign policy leadership. This is why the actual allocation isn't fixed but fluctuates with political alignment. Understanding this helps explain why some semi-presidential countries like Russia have a strong president, while others like Portugal lean more toward the prime minister's role.