Ann Althouse, the conservative law professor and legal blogger, has published photos of mailings sent by the Texas Obama campaign to her son. Althouse’s son is a Texas Democratic pledged delegate to the Hillary Clinton campaign and the mailings encourage delegates to “support Barack Obama at the county convention.” The letter is shown here via Chris Cohen’s Flickr Photrostream.

“It’s a tad hypocritical for Obama to encourage delegates to change sides, since he is the one who is trying to make a big principle out of binding the superdelegates at the national convention to the will of the voter,” writes Althouse.

On March 15, seven Iowa delegates pledged to John Edwards “switched” to Obama.