Donohue never impressed me, either, except for his gasbag capabilities.
But can you provide a cite for the 'civil union' part?
William Donohue, president of the Catholic League for Religious and Civil Rights, said the Chronicle, supports President Bush's proposed amendment to ban homosexual marriage; but, the article said that Donohue does not think it will "prevent same-sex civil unions, which he now supports," but merely keep homosexual couples from claiming the status of marriage. "I don't like all-or-nothing approaches anymore," said Donohue. (I can't find the original Chronicle article at the moment, but I have seen it, and I believe it was posted here on FR.)