Rob Sand and James Talarico are part of a growing group of Democratic candidates in next year’s midterm elections who are seeking to use faith to find common ground with voters.

That’s not Photoshop or some far-flung Caribbean island—that’s Grayton Beach State Park in Santa Rosa Beach, Florida, hiding in plain sight along the state’s northwestern coast. I’ve seen beaches.

Walking up to The Crab Trap feels like approaching an old friend’s beach house – if your friend happened to serve some of the best seafood in Florida. The large deck area offers the first hint that ...