Ask HN: Does this exist? "Click to support my cause"

I'm looking for a simple web app that allows anybody to create a cause. Once you've created the cause, you can send out a link that allows people to automatically contact their congressman via email and/or through an auto-VOIP-call -- all to support the cause. So it's a platform to allows leaders to more easily lead and followers to easily follow.

Does this exist? I've searched through LifeHacker, Hacker News archives, Sunlight Labs, and google -- no luck. Anybody know of something like this? I want to use it for the anti-angel Dodd bill awareness.