January of 2016. The New Hampshire primary was just weeks away. Donald Trump slid into a booth at the Red Arrow Diner in downtown Manchester and ordered a deep-fried concoction featuring a cheeseburger topped with mac 'n' cheese and smothered with cheesy sauce.

In that moment he joined a long, long list of candidates who've dined at the Red Arrow, including Barack Obama, Bill and Hillary Clinton, Jeb Bush, Ted Cruz, John Kasich and so many others. And 2020 hopefuls are already doing the Red Arrow eat-and-greet.

It would be a local institution even without the New Hampshire primary, but campaigns give it extra buzz. There are places like this in every state.

Candidates get to know them pretty quickly; the voters already do.

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