You might be interested in what Talk2Action has to say about this. For instance,
Details Schmeetails. Onward Christian Voters!
In Barton's first Voter Guide, McCain had a "NO" in his column for "Supports a national Human Life Amendment." So, to give the now preferred candidate a "YES" on this issue, Barton just changed the criteria from "Supports a national Human Life Amendment" to "Supports Protecting the Lives of Children Who Are Born Alive and Survive a Botched Abortion." Obama's confidence in doctors to make the ethical decision to do whatever they can to save a living baby, with or without a law requiring them to do so, of course, gets him a "NO" for this one.
McCain also had a "NO" in the first Voter Guide for "Supports a Federal Marriage Amendment." Back in 2006, McCain voted against the motion to invoke cloture and vote on the Federal Marriage Amendment. So, to give him a "YES" on supporting "traditional marriage" in the new Voter Guide, Barton again lowers the bar, changing the criteria from the original "Supports a Federal Marriage Amendment" to "Supports Federal Defense of Marriage Act (DOMA)."