While some political analysts see France as the best example of a semi-presidential system, the US stands as a powerful representative of a full president.
In a recent study, I analyzed the relationship between political crises and systems of government. Presidential systems demonstrate greater resistance to political crises, even when the president lacks a parliamentary majority, and the government is divided. The French semi-presidential system is more resilient than other forms of semi-presidentialism. France's semi-presidentialism grants significant power to the president, as the parliamentary electoral system of ballotage (like the presidential electoral system) and the “honeymoon” parliamentary election reduce the divergence of purpose caused by the independent election of the President and the Parliament. These advantages were wasted by the recent dissolution of the National Assembly. It remains to be seen whether French semi-presidentialism is compatible with a government of cohabitation and coalition or if a political crisis will ensue. Given the current level of fragmentation in the French party system, they might be safer with a presidential system of separation of powers like that of the United States.