Here is the deal The Columbia and snake dams have been in violation of the clean water act since the act was made into law. The army corps has never done anything to improve water quality in the lakes they created and never intended to do anything. This is just Bish saying that they will never have to do anything and that dams are more important than salmon.
The main problem in the Columbia is summertime surface water temps which reach well into the upper 70's even 80's. These temps are lethal for salmonids because such warm water contains very little disolved oxeygen..

In short Bush hates salmon If you vote for him it means you want salmon to go extinct. it's that black and white..