Question: Sonia Sotomayor was nominated to replace which judge appointed by George HW Bush?

Context articles: Nicolai N. Petro
Sotomayor Houses
Sonia Sotomayor Supreme Court nomination
Ruth Bader Ginsburg
David Souter
Stephen Lachs
340B Drug Pricing Program
William Happer
Sonia Sotomayor Learning Academies
Barack Obama Supreme Court candidates

Nicolai N. Petro is the Silvia-Chandley Professor of Peace Studies and Nonviolence (2017-2019) and Professor of Political Science at the University of Rhode Island, in the United States.
 He also served as the US State Department's special assistant for policy on the Soviet Union under President George HW Bush.
The Justice Sonia Sotomayor Houses and Community Center is a housing project in Soundview, The Bronx, New York City.
 Formerly known as the Bronxdale Houses, the project was renamed in honor of Supreme Court Justice Sonia Sotomayor in June 2010.
 The complex was originally opened in January 1955.
 The 28-building complex includes close to 1,500 apartments that house about 3,500 residents.
On May 26, 2009, President Barack Obama announced his selection of Judge Sonia Sotomayor for Associate Justice of the Supreme Court of the United States, to replace retiring Justice David Souter.
 Sotomayor's nomination was submitted to the United States Senate on June 1, 2009, when the 111th Congress reconvened after its Memorial Day recess.
 Sotomayor was confirmed by the U.S. Senate on August 6, 2009 by a 68–31 vote and was commissioned by President Obama the same day.
 She was sworn in by Chief Justice John Roberts on August 8, 2009.
Ruth Bader Ginsburg (born Joan Ruth Bader; March 15, 1933) is an Associate Justice of the Supreme Court of the United States.
 Ginsburg was appointed by President Bill Clinton and took the oath of office on August 10, 1993.
 She is the second female justice to be confirmed to the Court (after Sandra Day O'Connor), and one of four female justices to be confirmed (with Sonia Sotomayor and Elena Kagan, who are still serving).
 Following Justice O'Connor's retirement, and prior to Justice Sotomayor joining the Court, Ginsburg was the only female justice on the Supreme Court.
 During that time, Ginsburg became more forceful with her dissents, noted by legal observers and in popular culture.
 She is generally viewed as belonging to the liberal wing of the Court.
 Notable majority opinions Ginsburg has authored include "United States v. Virginia, Olmstead v. L.C.," and "Friends of the Earth Inc. v. Laidlaw Environmental Services, Inc."
David Hackett Souter ( ; born September 17, 1939) is a retired Associate Justice of the Supreme Court of the United States.
 He served from October 1990 until his retirement in June 2009.
 Appointed by President George H. W. Bush to fill the seat vacated by William J. Brennan, Jr., Souter sat on both the Rehnquist and Roberts courts and came to vote reliably with the court's liberal members.
Stephen M. Lachs (born September 1939) served as a judge of the Los Angeles County Superior Court from 1979 to 1999.
 He was the first openly gay judge appointed in the United States and is thought to be the first openly gay judge appointed anywhere in the world.
The 340B Drug Discount Program is a US federal government program created in 1992 that requires drug manufacturers to provide outpatient drugs to eligible health care organizations and covered entities at significantly reduced prices.
 The intent of the program is to allow covered entities to "[s]tretch scarce federal resources as far as possible, reaching more eligible patients and providing more comprehensive services."
 Maintaining services and lowering medication costs for patients is consistent with the purpose of the program, which is named for the section authorizing it in the Public Health Service Act (PHSA) It was enacted by Congress as part of a larger bill signed into law by President George HW Bush.
William "Will" Happer (born July 27, 1939) is an American physicist who has specialized in the study of atomic physics, optics and spectroscopy.
 He is the Cyrus Fogg Brackett Professor of Physics, Emeritus, at Princeton University, and a long-term member of the JASON advisory group, where he pioneered the development of adaptive optics.
 From 1991 to 1993, Happer served as director of the Department of Energy's Office of Science as part of the George HW Bush administration.
Sonia M. Sotomayor Learning Academies is a complex of high schools and one middle school choice in Los Angeles, California.
 It is a part of the Los Angeles Unified School District.
 Sotomayor is made up of five individual schools.
 The complex includes the Los Angeles River School (LARS), the School of History and Dramatic Arts (SoHDA), The studio school (middle school or junior high), Early College Academy of Leaders and Scholars (eCALS), and Tennenbaum Tech school (ATAMS).
 It is named after Sonia Sotomayor.
President Barack Obama made two successful appointments to the Supreme Court of the United States.
 The first was Judge Sonia Sotomayor to fill the vacancy created by the retirement of Justice David H. Souter.
 Sotomayor was confirmed by the United States Senate on August 6, 2009, by a vote of 68–31.
 The second appointment was that of Solicitor General Elena Kagan to replace the retired John Paul Stevens.
 Kagan was confirmed by the United States Senate on August 5, 2010, by a vote of 63–37.