How does the prime minister of Israel become prime minister?

Answer:
all the parties in Israel go to a free election once of every 3 years, the president choose the party wich has the best possibility to create a strong and stable coalition ( most of the time is the biggest party in the parliament ) . the chairman of that party is the one who need to create the coalition and the one who becomes the prime minister .
First answer by TeddyCohen. Last edit by TeddyCohen. Contributor trust: 7 [recommend contributor recommended]. Question popularity: 2 [recommend question].