Is Mitch Daniels reluctant to run because of the strange story of his marriage?

Here's what we know about it now:

In 1993, Cheri Daniels left her husband with their four daughters and married another man in California. She returned a few years later, reconciled with Daniels, and the two were remarried in 1997.

Obviously, we want more details, and if he runs he'll have to give them. But why not? He seems too drab right now, and that is un-drab. Figure out a good way to tell the story, and run with it.