Tonight is the Democratic National Convention's big keynote address.

Democrats tend to favor naming nobodies to offer these remarks, an attempt to give a possible rising star some national prominence. Think Barack Obama in 2004.

Tonight's speaker in Charlotte is Julian Castro. He'll be introduced by his twin brother Joaquin Castro, 37. They will both talk about a very popular bipartisan talking point as the U.S. general election season gets underway: The American Dream.

Pretty much every Republican who opened their mouth on the podium last week in Tampa talked of The American Dream. And these American Castro brothers will be no exception, although they are Democrats. So, they didn't build it.

Julian is the mayor of San Antonio and Joaquin is a Texas state representative, who'd like to go into John Boehner's House of Representatives. A double PR attempt by the Charlotte convention.

Getting the keynote honor is hit-or-miss.