Notable endorsements for Giuliani, McCain

Rudy Giuliani and John McCain each landed the endorsement of a prominent social conservative today. Each of the endorsers also happens to be a former presidential candidate.

Pat Robertson, who made a big splash in the 1988 Iowa caucuses, is backing Giuliani.

Sam Brownback, who dropped out of this year's race earlier this fall, is backing McCain.

Earlier this week Mitt Romney won the backing of Paul Weyrich, meaning all three Republican candidates can claim to have made a favorable impression with Christian conservatives.