Sen. Russ Feingold just gave this speech on the Senate Floor on the nomination of Priscilla Owen. The first half discusses the use of the filibuster, and the second is his detailed reasons for opposing Owen. From the first half:

The idea that the filibuster has been used over the past several years as a tool to block all the nominees that the minority oppose is ludicrous. There were, and there continue to be, very good reasons to block a certain small number of nominees. Nothing that occurred last night changes that one iota. I will continue to vote against cloture only in extraordinary circumstances. I did that when we voted on cloture on the Owen nomination in 2003, and each subsequent time. And I have done it again today. For the majority to have created this constitutional crisis over what came down to five nominees was wrong. It was an abuse of power. The American people did not support it and they will not support it in the future.