The only thing that's consistent in politics is change.

But we should not lose sight of how far we are coming and what a big hole we were left by George W. Bush.

Look, being president of the United States is the toughest job in the world and I can tell you, as someone who has worked with Secretary Clinton and competed against her that she is a tough person who is ready to do this job.

Progress is a choice. Job creation is a choice. Whether we give our children a future of more or a future of less - this, too, is a choice.

We have now under President Obama's leadership had 29 months in a row of private sector job growth. That stretch of positive private sector job growth hasn't happened since 2005. We still have a long way to go, but we are moving in the right direction.

To those who say climate change is not caused by human activity or that addressing it will harm the economy, let's encourage them to go to college, too, and to study physics and to study economics, but for the rest of us, let's get to work.

Our parents taught us to love God, love our family and love our country. Their own grandparents were immigrants. Their first language may not have been English, but the hopes and dreams they had for their children were purely American.