Here's a good one:
Over the last eight years, our response to 9/11 ended America's world political dominance, in turn the Iraq and Afghanistan wars ended our world military dominance, in turn our response to Katrina and Rita, Guantanamo Bay and Abu Ghraib ended our world moral dominance, and in turn the Crash of 2008 ended our world financial dominance. In November we must decide between the people that squandered everything that made America great, or the people who can restore that greatness.