I think Wikis themselves are more useful than ever but I don’t know how well a political Wiki would go over. I could see it being very easy to get accused of being biased in one direction.

You may want to do some digging and see if something similar exists though I doubt a lot of websites would be open to outside submissions.

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If you do decide to create one I would be interested to see a historical background section. For example if a page is dedicated to improving failing infrastructure in the United States including when and why it was developed, prior large pushes for maintenance, and the history of funding.

I feel like knowing how things go the way that they are should be a bigger part of people’s political views. That is unrelated to your question though; just an idea.