About 76 years ago, President Franklin D. Roosevelt hatched a plan for bending to his will a recalcitrant and obstructive (by his lights) U.S. Supreme Court. The Court at the time consisted of seven Republican appointees and two Democratic ones.

As the Senate Committee on the Judiciary explains what happened:

To counter the impact of the Court's decisions

The Senate Judiciary Committee lists these folks who'll testify for/against/about the nomination of Elena Kagan to replace Associate Justice John Paul Stevens:

American Bar Association Witnesses

Kim Askew, Chair, Standing Committee
William J. Kayatta, Jr., First Circuit Representative

Majority Witnesses

Professor Robert C. Clark, Harvard University Distinguished Service Professor, Austin Wakeman Scott