Could a change a nation's constitutional form after I invaded it in SuperPower 2?

I recently invaded and took control of Iran, now I want to make it into a multi-party democracy. Can I do that?|||I have not played that game in a long time and I do not remember.... I think there is some way... I am just not quite sure how...sorry.|||You do realize you%26#039;re playing a video game...right?