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 think that both Bernie [Sanders] and Hillary [Hillary] have highlighted how much, over the last few decades, we have seen the concentration of wealth in fewer and fewer hands.

My hope is Donald Trump will take a longer view and a more unified approach.

So my concern is that - what the campaign has to do is to pull those folks [negative to Donald Trump] out and make sure that they actually get to the ballot.

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 never owned a house. She cleaned other people's houses so she could afford to rent her own. But she saw her daughter become the first in her family to graduate from college. And my mother fought hard for civil rights so that instead of a mop, I could hold this microphone.

The American dream is not a sprint or even a marathon but a relay.

I stand before you tonight as a young American, a proud American, of a generation born as the Cold War receded, shaped by the tragedy of 9/11, connected by the digital revolution and determined to re-elect the man who will make the 21st century another American century - President Barack Obama.