Erdo?an loses the game show

On his return flight from Saudi Arabia, President Recep Tayyip Erdo?an spoke to reporters. This is what he said: "There is nothing to say that you can't have a presidential system in a unitary state. There are already some examples in the world today, and also some from the past. You see it when you look at Hitler's Germany. You also see the example again in various other counties."

On the same day, Prime Minister Ahmet Davuto?lu said the following: "The correct one is the presidential system. An authoritarian structure could develop from the parliamentary system, as was the case with Hitler in Germany." 

It's confusing to read these two sentences back to back. Did Hitler's Germany have a presidential system or a parliamentary system?  

Hitler was appointed prime minister from the parliament by President von Hindenburg. At that time, Germany was ruled by the parliamentary system. Later, Hitler changed the laws. 

President Erdo?an is wrong. 

He was also wrong when explaining why he thinks the presidential system is necessary. "When you look at developed countries," he said, "you see that the overwhelming majority have this system."

Out of all 28 EU countries, only Greek Cyprus is ruled by a presidential system and France has a semi-presidential system. All the others have parliamentary systems.

Out of the G-20 countries, eight have the parliamentary system. France and Russia are ruled by semi-presidential systems. Seven countries are ruled by presidential systems: Argentina, Brazil, Mexico, South Korea, the U.S., Indonesia and South Africa. Of the remaining two, one is Saudi Arabia, which is still a monarchy, and China, which has its own unique system.

As you can see, except for South Korea and...