Maggie Gallagher

In fact, as PBS reports, "The majority of the states with large evangelical populations are safely held Republican territory. But a few -- Virginia, North Carolina, Florida, Michigan and Ohio -- are predicted to be closely contested battleground states this fall. North Carolina and Virginia have the largest percentage of evangelical voters, but each of the other states has an evangelical population over 25 percent. If Romney can mobilize this group in November, it could mean the difference in a close election."

I would add Colorado and Iowa as two more swing states where evangelicals' enthusiasm for Huckabee could be the margin of victory.

Would he do it? He took himself out of the running for president this year, saying it was a personal decision to keep doing the TV show he loves. But spending 18 months running for president is a lot harder, and more draining on the family purse, than running from September to November -- with the prize of sitting a heartbeat away from the presidency and being the presumptive front-runner for the next open presidential primary.

If asked, I bet he would serve.

Will Romney be smart enough to ask?

Maggie Gallagher

Maggie Gallagher is a nationally syndicated columnist, a leading voice in the new marriage movement and co-author of The Case for Marriage: Why Married People Are Happier, Healthier, and Better Off Financially.