I’m in a Dunkin’ Donuts in New Hampshire, but maybe that’s a redundancy.

This is quaint Hollis, a village close to the Mass border. Autumn Brewington and Dana Milbank just walked in, so it really must be the center of the political universe.

Rick Santorum is speaking at the Lawrence Barn, which is luciously red against the brown fields and the scraggly apple orchards. The barn was standing room only, and lots of people couldn’t get inside, so the candidate stood on a rock — a glacial boulder — and took some questions before going inside. Not a stump speech, a boulder speech. And before this, he stood on a picnic table in Amherst, with a frozen lake behind him and sunshine slanting through the pines.

“Think Reagan, vote Santorum!” he said.

Give Santorum credit: He’s an eager beaver. He likes to campaign. He can talk. His philosophy seems to be to leave the voters wanting less. See the excellent Rosalind Helderman story today in The Post.

I’ve been working on a story that should be online soon I’ve been to two Huntsman events, two Romney events, a whole bunch of Santorums, one Paul, two Gingriches. This isn’t the Great Campaign of four years ago, but what could be? It’s only one contest, not two. Still, it’s the New Hampshire Primary, one of the great institutions in American democracy, because it’s one of the few events that’s unscripted. The candidates aren’t behind velvet ropes. Anyone can ask a candidate a question. Or heckle, as Santorum has discovered at every stop.

I think the Founders would approve.