Perhaps the Democrats were hoping to embarrass Mr Bush. If so, they have succeeded.

It would be great if the Turks could be persuaded to admit to having committed genocide against the Armenians. It would also be great if the USA could be persuaded to admit to having committed genocide against the Vietnamese and the Native Americans (among others), but I guess that is a matter outside of this particular discussion. It would be great if the USA could be persuaded to admit to having committed unprovoked aggression and crimes against humanity in the Middle East too.

My point being, the Turks may well feel that the USA has more to apologize for right now than they do. And they may be quite right about that.