Let me finish tonight with some things the president said today in Cleveland. It was a partisan speech, as a president can be expected to give in a tough election season. But deep in his message today was the heartbeat of the campaign that won him the White House. "Although we are proud to be Democrats, we are prouder to be Americans.” "Our families believed in the American values of self-reliance and individual responsibility, and they instilled those values in their children. But they also believed in a country that rewards responsibility. A country that rewards hard work. A country built upon the promise of opportunity and upward mobility." "They believed in an America that gave my grandfather the chance to go to college because of the GI bill." I think I could have given that speech. My father went to college on the GI bill due to his service in the Navy during World War II. It's probably the reason I grew up in the comfortable middle class, why I was able to go to private high school. I went to college with the help of loans from the National Defense Education Act passed during the height of the Cold War. It's the reason I was able to go to Holy Cross. But the deeper message here is gratitude, gratitude for being born in this great country, gratitude for benefiting from the freedom that is our American brand together with democratic opportunities like access to first-rate higher education. I know this is what thrilled people with Obama's campaign - it's well-known that I was among them. It is fundamental that, in this heated, national campaign, that he return to addressing this country's basic belief in itself - his belief in the America that made him - because it is on this that his and the country's return to success must be founded. "That's the America I believe in," the president said today, "because I don't believe we can have a strong and growing economy without a strong and growing middle class."