Here’s our list of (real and imagined) possibilities. Some are obvious, some less so. For our betting dollars, we’re banking on someone like Giglio with a unique profile but not necessarily a headliner.

Sojourners founder Jim Wallis

Pro: The Sojourners founder is a strong progressive who’s in line with the White House and has good relations with the administration. Plus, he’s everywhere.

Con: See above: he’s everywhere. Perhaps a bit too well known; he doesn’t need a presidential invite to raise his profile or satisfy his ego.