You must be joking..... I guess your liberal friends have not made you aware that the big push now is to UNDAM rivers.
The people pushing to undam rivers are not liberals, they are not conservatives either, they are comprised of a variety of people. The one thing they have in common is that they clearly don't understand that a lot of development downstream of dams has occurred as a result of the dam being there. It would be a foolish move to take out any dam. You can just about guarantee the US's dam building days are over.