", i.e. the heads of state of the 27 member countries. "
The Italian president is un-elected (chosen by parliament).
Also, what does this mean for Spain, whose head of state is a King?
Im sure "head of state" means "effective ruler of the country", a PM in Italy, the president of France. But ut just points to the Byzantine rules the EU has created in 20 (or is it 30? Or is it 70?) years.