I get the feeling that politics in the US is fast becoming like West Bengal politics (!!) — the same party is always in power, the opposition is just their to fill some seats and make some speeches with little influence on policy.
Ever since the elections last year the Democrats have been struggling to develop a coherent strategy. Without a majority in either the senate or the house, the President has a strong chance of pushing ahead with his agenda. Faced with this predicament, the Democrats are inclined to oppose anything and everything simply because of the ideological differences. At present it sounds like they raise a hue and cry each time (judicial nominees and other appointments) and then finally go away empty handed. Unfortunately, this will not help their cause, especially in the long run. It might be prudent to develop a comprehensive strategy, which involves picking a few battles and somehow trying to win them. Else they will just come across as being obstructionist and this might worsen their tally in the years to come. The Bolton nomination is yet another test of their strategy.