Ask HN: Is there a legal way to participate in prediction markets?

[Siah]

I am a US resident and it seems that I cannot use my US accounts to legally pay for Intrade. I am wondering, considering the rise of prediction markets, is it possible for US residents to participate in these markets legally?

[tokenadult]

The Iowa Electronic Markets

http://tippie.uiowa.edu/iem/faq.html#who

are legal for United States residents, and offer a pretty good spread at the moment for making some quick money on the election results.