Israel has had more than its share of terrorists in its government - more than one becoming the Prime Minister. Presumably those terrorists who became polititians were elected to power in the same way as Hamas. Wait a while and Haniyeh will be as respectable as Begin - and is a lot better looking....!
Shaffir to Herzog: Opposition failed to show leadership in political battles against PM (Haaretz)
from the article: Gal-On asks Peretz to look into use of cluster bombs in Lebanon