The latest entry in "The Political Machine" series has been announced for pre-order. You can pre-purchase the game (with a release date set on each latter site as July 31, 2012) for less than $10.

Stardock:
https://store.stardock.com/product/ESD-SDE-W018 ($6.95)

Steam:
http://store.steampowered.com/app/211120/ ($6.99)

GameStop:
http://www.impulsedriven.com/tpm2012 ($6.99)