The campaign has a flashy website and official logo T-shirts and signs. Prominent Democrats have endorsed it and written $25,000 checks. Its paid operatives and volunteers have set up shop in a suburban strip mall office that last housed the regional campaign headquarters for Virginia Sen. Tim Kaine.

All it needs now is a candidate.

The upstart super PAC, called Ready for Hillary, is fast emerging as the quasi-official stand-in for potential 2016 presidential contender Hillary Rodham Clinton, scooping up advisers and gathering big donations more than three years ahead of election time.