Since Lightning Medicine Cloud is supposedly the "hope of all nations," here's an idea for a political cartoon:
Sacred white buffalo calf stands at podium at next tribal summit. Lectures lawmakers on sovereignty, trust relationship, Cobell settlement, overlapping crime jurisdictions, underfunded health services, off-reservation gaming, suicide rates, etc. Caption: "White buffalo offers hope to Indian country."
For more on the subject, see White Buffalo in Popular Culture and White Buffalo = Third of Its Kind?