Both candidates talked about enforcing a no-fly zone in Darfur, though, as I understand it, the US military has not viewed this as a realistic option in a vast area of Western Sudan. Biden also threw out a death toll of thousands or tens of thousands, though there are no good numbers on that. Palin also talked about divesting from companies invested in Sudan. The US has sanctions on Sudan, so most of the divestment movement is from companies in China and Europe that do business with Sudan.