The week before the South Carolina primary, evangelicals are throwing all their support behind Rick Santorum.

Former senator Rick Santorum has emerged as the choice of more than 150 evangelical leaders who huddled at a Texas ranch Friday night to debate their preferred candidate in the GOP presidential race.

The move represents an eleventh-hour effort by social conservatives one week out from the crucial South Carolina primary to unify around a single candidate and blunt the momentum of former Massachusetts governor Mitt Romney, whom many evangelicals consider insufficiently conservative.

Is "insufficiently conservative" a code-word for "too Mormon?" It'll be interesting to see if this matters in South Carolina, and what the evangelicals will do when Romney eventually wins the nomination.