I agree. I am uncomfortable with non-original cites. We shall all have to look for it. Supposedly said in May of 1868, most likely in the congressional record. I'm going to look for it right now.
But it begs the question. YOUR concern for it implies that you regard it as a game changer. I could not be more delighted. :)
Not so. I do not regard it as a game changer, merely another piece of information. I have already posted quotes from Senator Trumbull that would contradict this, but I like to get as much information as possible. I respect and agree with your desire for original sources.