The GOP's 2008 convention platform sez:

We call for a constitutional amendment that fully protects marriage as a union of a man and a woman, so that judges cannot make other arrangements equivalent to it. In the absence of a national amendment, we support the right of the people of the various states to affirm traditional marriage through state initiatives. ... We also encourage states to review their marriage and divorce laws in order to strengthen marriage.

So, tell me: What will the politically expedient union of two sexually irresponsible minors with no high-school diplomas who suddenly find themselves pregnant do to "fully protect" and "strengthen marriage"?