The Sotomayor pick promises to split liberal and conservative interest groups right down the middle. Here's Michael B. Keegan, President of People for the American Way, on the nomination:

President Obama has made a superb choice. Judge Sotomayor has one of the sharpest intellects on the federal bench. She's shown that she'll bring an open mind to the Court and rule on each case according to its particular merits. Her nomination is a very positive step towards bringing diversity to our highest Court.

President Obama used this opportunity to do exactly what he promised in last year's election - to select a person who has demonstrated an abiding commitment to core constitutional values of justice, opportunity, and equality under the law. He has named someone who understands the impact that the law has on the everyday lives of ordinary Americans.

This nomination is good news for people who care about the future of our rights and liberties. Now it's up to our Senators to avoid the distraction of attacks from the far right and work for a smooth, fair confirmation process. We urge them to confirm Judge Sotomayor with all deliberate speed.