Leaders of the Christian Right, a once-important bloc within the Republican Party, have endorsed Rick Santorum.
I believe this action will have two consequences.
First, evangelical Christians will not follow these once-powerful leaders, but will split their votes among many candidates, including Mitt Romney.
Second, the split within the Republican Party between the establishment wing, which backs Romney, and the evangelical wing, which does not, will widen.
The Republican Party has been effective in blocking a few of President Obama's policies, but seems to be unable to unite around any effective positive idea for governing, nor do they support an effective candidate to bear such an idea. By further splitting the party, the Christian Right leaders have handed President Obama another gift.