I couldn't help but to think back to my classmates at Thomas Jefferson High School in San Antonio. They had the same talent, the same brains, the same dreams as the folks we sat with at Stanford and Harvard. I realized the difference wasn't one of intelligence or drive. The difference was opportunity.

Tim Kaine is an excellent choice for vice president.

[M]y mother fought hard for civil rights so that instead of a mop, I could hold this microphone. And while she may be proud of me tonight, I've got to tell you, Mom, I'm even more proud of you. Thank you, Mom.

There's always a little bit of disappointment. At the same time, number one, [Hillary Clinton] made a great choice. Secondly, I'm 41. And so I feel like - that I'm excited about the years to come.

In the end, the American dream is not a sprint, or even a marathon, but a relay. Our families don't always cross the finish line in the span of one generation. But each generation passes on to the next the fruits of their labor.

My grandmother didn't live to see us begin our lives in public service. But she probably would have thought it extraordinary that just two generations after she arrived in San Antonio, one grandson would be the mayor and the other would be on his way - the good people of San Antonio willing- to the United States Congress.

I cannot imagine a scenario where Donald Trump does better than Mitt Romney with the Hispanic vote.