Since the contest is just beginning, we don't have submissions to show you, but for inspiration, these are some of the best short political videos around.

Building on the Past
by Justin Cone
Creative Commons sponsored a video contest and this was their winning movie. "Name of the Video" does a great job of explaining the purpose and goal of the creative commons license in an engaging way.
Watch Building On The Past
(quicktime)
(quicktime)

The Meatrix
by Free Range Graphics
Arguably the most effective political flash animation that's ever been done. It's clear, smart, engaging, very professional, and it's got a great gimmick. This video spread like wildfire when it came out.
Watch The Meatrix
(flash)
(flash)

Fight Back
by James Saldana
This modified Pepsi ad shows how much can be done with a few smart, funny touches.
Watch Fight Back!
(quicktime)
(quicktime)