I suspect that it isn't. After I voted, I navigated away from the page to begin my post here. When I re-opened the page (using the URL I got via email), it put me right back on the results page.
People have been pimping that poll here for nearly 5 weeks
http://www.freerepublic.com/focus/search?m=all;o=time;q=quick;s=msnbc%20poll