Campaign season starts with Iowa State Fair

The annual Iowa State Fair is known as the unofficial start to campaign season. Nearly all of the 2020 candidates are in Des Moines feasting on fried food and fraternizing with potential voters, even though the state's caucuses are months away.

The fair has long been seen as a right of passage of presidential wannabes. But with campaigns starting increasingly earlier, and national media driving more of the conversation, how much does that still ring true?