presidential candidates are required to show proof of their native-born citizenship, to even be eligible to run
You have a citation for that? I'm not saying you're wrong. But I've never heard of anyone having to do that.
http://www.wnd.com/index.php?pageId=66787I've seen multiple articles on this subect over the last 2 years, mostly on worldnetdaily.
The mainstream media prefers to just label the birthers as wackos, and ignore the legitimacy of the issue they raise.
I'm not a birther, but I think the issue they raise is legitimate.