It would probably work. It wouldn't be as simple as Kickstarter, however: US public policy already favors the wealthy. (Oligarchy) If the ability to participa

It would probably work. It wouldn't be as simple as Kickstarter, however: US public policy already favors the wealthy. (Oligarchy) If the ability to participate in the government was predicated on spending some cash, the system would eventually turn into a Feudal state. This is why poll taxes are outlawed: the government cannot require you to pay to vote.