It won't be 80-20, it will be something like 52-47. Where does this 80-20 fantasy come from?
It's the Democrats -- not the Republicans -- who are the ones facing a serious political problem here. The Democrats have been looking to use the Judiciary committee and/or filibusters to hold up executive branch nominees because they realize that voting against some of them (particularly the women and the Hispanics) puts them in a very difficult position from a political standpoint. The last thing they want is to face a future re-election campaign in which these votes are held against them and could ultimately cause their defeat (see Exhibit A: Tom Daschle).