I guess Ralph Reed, former Executive Director of the Christian Coalition, didn't know that (or didn't care) when he was campaigning for Bush in 2004...
Much like National Right to Life, the Christian Coalition was essentially a GOP puppet organization.
Or James Dobson, who told his followers that not voting in the 2004 election (for the only "godly candidate") was a sin...
Or Jerry Falwell, who publicly supported Bush in the last two elections...
Or Janet Parshall, or Richard Land (head of the SBC), or Ted Haggard (head of the NAE)...
Perhaps Bush was far enough right to garner their support.
And these guys were beset by the lesser of 2 evils mentality.