Question: What is the name of the retired Supreme Court Justice that Carlos Moreno was a leading candidate to replace?
Context: Julio Garceran de Vall (1907–1989) is a former Supreme Court Justice of Cuba.  He headed a provisional Cuban government-in-exile in the early 1960s.  He was a municipal court judge from 1934 to 1946, and later a Supreme Court justice from 1948 to 1959.  He died in 1989. The Supreme Court is composed of the Chief Justice, twenty Justices.  The Chief Justice is appointed by the President on the recommendation of the Constitutional Council.  S/he is appointed from among the justices having at least three years as a Supreme Court justice.  Justices of the Supreme Court are appointed by the President of Nepal on the recommendation of the Judicial Council.  The Chief Justice and the justices of the Supreme Court have to be confirmed by the Parliamentary Hearing Committee before they can be appointed by the President.  The administrative head of the Supreme Court is the Chief Registrar.  In addition to the Chief Registrar, one Registrar and four Joint-Registrar are appointed to led different departments of the Supreme Court and offer administrative assistance to the Court.  Officers of the Supreme Court are appointed by Government of Nepal under the recommendation of the Judicial Service Commission. After his nomination on January 31, 2017, Neil Gorsuch was confirmed by the Senate on April 7, 2017.  Gorsuch, age 49, is the youngest sitting Supreme Court justice since Clarence Thomas.  In February 2016, U.S. Supreme Court Associate Justice Antonin Scalia died, leaving a vacancy on the highest federal court in the United States.  Article II of the U.S. Constitution requires the president to nominate justices to the Supreme Court, subject to the "advice and consent" of the United States Senate.  President Barack Obama, a Democrat, nominated Merrick Garland to fill the vacancy.  U.S. Senate majority leader Mitch McConnell, a Republican, arguing that the presidential election cycle having already commenced made the appointment of the next justice a political issue to be decided by voters, refused to bring the Garland nomination to the Senate floor for a vote.  McConnell's action held the Supreme Court vacancy open through the end of President Obama's tenure. Karin Maria Bruzelius (born 19 February 1941) is a Swedish-born Norwegian supreme court justice and civil servant.  She served as a justice on the Supreme Court of Norway from 1997 to 2011.  Before her appointment as supreme court justice, she was Secretary-General (Permanent Secretary) of the Ministry of Transport and Communications from 1989 to 1997, as the first woman to serve as Permanent Secretary in Norway.  She has previously also been a Director-General in the Ministry of Justice and a corporate lawyer.  She was a member of the Permanent Court of Arbitration at The Hague from 2004 to 2010.  Bruzelius was President of the Norwegian Association for Women's Rights from 1978 to 1984.  She chaired the Petroleum Price Board from 1987 to 2004. Closed Chambers: The Rise, Fall, and Future of the Modern Supreme Court is a 1998 book by Edward Lazarus, who served as a law clerk for U.S. Supreme Court Justice Harry Blackmun during the October Term 1988.  Lazarus combines his reflections as a clerk with a substantial body of research to describe the collapse in comity between Justices - and particularly clerks - at the Supreme Court.  The book is noted both for its extraordinary inside access to internal Supreme Court deliberation and its arguably balanced account of the controversy surrounding many high-profile Supreme Court decisions on the death penalty, civil rights, and abortion. The Chief Justice is the presiding member of a supreme court in any of many countries with a justice system based on English common law, such as the Supreme Court of Bangladesh, the Supreme Court of Canada, the Supreme Court of Singapore, the Court of Final Appeal of Hong Kong, the Supreme Court of Japan, the Supreme Court of India, the Supreme Court of Pakistan, the Supreme Court of Nepal, the Constitutional Court of South Africa, the Supreme Court of Ireland, the Supreme Court of New Zealand, the High Court of Australia, the Supreme Court of the United States, and provincial or state supreme courts. Marie Louise v. Marot (1836) was a freedom suit heard by the Louisiana state district court and appealed to the Louisiana Supreme Court.  The Court held that a slave who is taken to a territory prohibitive of slavery cannot be again reduced to slavery on returning to a territory allowing of slavery.  The ruling was cited as precedent to the 1856 landmark "Dred Scott v. Sandford" case heard by the U.S. Supreme Court.  Supreme Court Justice John McLean cited the precedent in his dissent of the majority ruling.  Six of eight justices did not abide by the precedent in what has been considered the worst decision ever made by the Supreme Court. 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. Carlos Roberto Moreno (born November 4, 1948) is a Mexican-American jurist who is the former United States Ambassador to Belize.  Previously, he served as a Judge of the United States District Court for the Central District of California from February 4, 1998, to October 18, 2001, and as an Associate Justice of the Supreme Court of California from October 18, 2001, to February 28, 2011.  Following his retirement from the bench in 2011, Moreno was counsel with Irell & Manella.  Moreno was considered to be a leading candidate to replace retiring Justice David Souter on the United States Supreme Court. Peter Donald Blaxell is a retired justice of the Supreme Court of Western Australia.  He was appointed to the Supreme Court bench on 2 February 2005 and retired on 25 February 2011.  Before his appointment as a Supreme Court justice, Blaxell was a judge of the District Court of Western Australia for 14 years, having joined that court in February 1991.
Answer: David Souter