this about congressional involvement. >> we are committed to finding a mechanism for appropriate congressional involvement and oversight. my hope is, is that we can find something that allows congress to express itself but does not encroach on traditional presidential prerogatives, and ensures that if in fact we get a good deal that we can go ahead and implement. >> this afternoon, the white house gave this reaction to the bill sponsored by senator corker that gives 60 days to consider the bill. >> you know, in this fashion, we have a pretty strong disagreement, because in the mind of the president, it could potentially interfere with the ongoing negotiations that are slated to continue through june. it also could interfere with the