I currently play a very great game and I hope that it is OK if I post a quick link on here. It is a political simulation of the American government and is quickly becoming the most powerful sim of its kind. We are currently going through a very exciting election and the game only promises to get better daily. The game boasts of an active Congress, White House, and Supreme Court and is currently looking into adding an active lobbyist program, governor and mayoral positions. So, what are you waiting for? At least check it out:

The American Republic