Our political debates today are corrosive and not reflective of the belief that Abe Lincoln espoused back in his day: that we are a great country because we are a good country.

This is a time when the United States should be standing tall. There is no other leader in the world today. We shouldn't be approaching conflicts as a team sport. We either get in an we lead and we do a good job, or you don't get in at all.

America is the primary engine of growth in the world and we are the only beacon of free trade left, and open markets.

And the trajectory that our debt is taking now beyond $14 trillion is going to have an impact on our currency. It goes south, and our currency's going to have an impact on our standard of living and affect every family in this country, and over time, our international competitiveness.

I respect the president. He and I have a difference of opinion on how to help the country we both love. But the question each of us wants the voters to answer is who will be the better president, not who is the better American.

Science is the process of crash testing ideas: you ram the idea head-on into a brick wall at 60mph, and knowledge is gained by examining the pieces. If the theory is solid, the pieces are from the wall. Then we build a bigger wall.

The reality, sitting ten thousand miles away, is that we remain the country that inspires. We remain that shining city on a hill.