{ "id": "epn7qd66zz", "slug": "john-a-kronstadt", "title": "John A. Kronstadt", "updated": "2026-10-15", "topic_path": [ { "id": "society", "label": "Society and history", "api_url": "https://www.edgepedia.org/api/v1/topics/society" }, { "id": "society.law", "label": "Law and justice", "api_url": "https://www.edgepedia.org/api/v1/topics/society.law" }, { "id": "society.law.practice", "label": "Courts and legal practice", "api_url": "https://www.edgepedia.org/api/v1/topics/society.law.practice" }, { "id": "society.law.practice.people", "label": "Legal biographies", "api_url": "https://www.edgepedia.org/api/v1/topics/society.law.practice.people" }, { "id": "society.law.practice.people.people.judges.us", "label": "United States judges", "api_url": "https://www.edgepedia.org/api/v1/topics/society.law.practice.people.people.judges.us" }, { "id": "society.law.practice.people.people.judges.us.federal", "label": "US federal judges", "api_url": "https://www.edgepedia.org/api/v1/topics/society.law.practice.people.people.judges.us.federal" }, { "id": "society.law.practice.people.people.judges.us.federal.article3", "label": "Article III judges (district and appellate)", "api_url": "https://www.edgepedia.org/api/v1/topics/society.law.practice.people.people.judges.us.federal.article3" }, { "id": "society.law.practice.people.people.judges.us.federal.article3.district-judges", "label": "United States district court judges", "api_url": "https://www.edgepedia.org/api/v1/topics/society.law.practice.people.people.judges.us.federal.article3.district-judges" }, { "id": "society.law.practice.people.people.judges.us.federal.article3.district-judges.alpha-i-to-k", "label": "Surnames I to K", "api_url": "https://www.edgepedia.org/api/v1/topics/society.law.practice.people.people.judges.us.federal.article3.district-judges.alpha-i-to-k" } ], "geo": [ { "id": "geo.us.t2021.society.law.practice.people.people.judges.us.federal.article3.district-judges.alpha-i-to-k", "label": "United States · 2021 and later: Surnames I to K", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.us.t2021.society.law.practice.people.people.judges.us.federal.article3.district-judges.alpha-i-to-k", "path": [ { "id": "geo.us", "label": "United States", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.us" }, { "id": "geo.us.t2021", "label": "United States · 2021 and later", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.us.t2021" }, { "id": "geo.us.t2021.society", "label": "Society and history", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.us.t2021.society" }, { "id": "geo.us.t2021.society.law", "label": "Law and justice", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.us.t2021.society.law" }, { "id": "geo.us.t2021.society.law.practice", "label": "Courts and legal practice", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.us.t2021.society.law.practice" }, { "id": "geo.us.t2021.society.law.practice.people", "label": "Legal biographies", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.us.t2021.society.law.practice.people" }, { "id": "geo.us.t2021.society.law.practice.people.people.judges.us", "label": "United States judges", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.us.t2021.society.law.practice.people.people.judges.us" }, { "id": "geo.us.t2021.society.law.practice.people.people.judges.us.federal", "label": "US federal judges", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.us.t2021.society.law.practice.people.people.judges.us.federal" }, { "id": "geo.us.t2021.society.law.practice.people.people.judges.us.federal.article3.district-judges", "label": "United States district court judges", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.us.t2021.society.law.practice.people.people.judges.us.federal.article3.district-judges" }, { "id": "geo.us.t2021.society.law.practice.people.people.judges.us.federal.article3.district-judges.alpha-i-to-k", "label": "Surnames I to K", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.us.t2021.society.law.practice.people.people.judges.us.federal.article3.district-judges.alpha-i-to-k" } ] } ], "excerpt": "John A. Kronstadt, also known as John Arnold Kronstadt, is an American jurist serving as a senior United States district judge in California, appointed by President Barack Obama in 2011.", "snippet": "John A. Kronstadt, also known as John Arnold Kronstadt, is an American jurist serving as a senior United States district judge in California, appointed by President Barack Obama in 2011.", "node": "society.law.practice.people.people.judges.us.federal.article3.district-judges.alpha-i-to-k", "markdown": "# John A. Kronstadt\n\nJohn Arnold Kronstadt (born 1951) is an American jurist serving as a senior United States district judge of the [United States District Court for the Central District of California](https://www.edgepedia.org/united-states-district-court-for-the-central-district-of-california). He has served on the court since 2011, when he was appointed by President Barack Obama.[1](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge) He assumed senior status (semi-retired federal judge with a reduced caseload) on April 1, 2022.[2](https://www.fjc.gov/node/1393676)\n\n| Fact | Detail |\n| --- | --- |\n| Court | U.S. District Court for the Central District of California[2](https://www.fjc.gov/node/1393676) |\n| Appointed by | Barack Obama[2](https://www.fjc.gov/node/1393676) |\n| Confirmed | April 12, 2011 (Senate vote: 96 to 0)[2](https://www.fjc.gov/node/1393676) • [3](https://voteview.com/rollcall/RS1120058) |\n| Senior status | April 1, 2022[2](https://www.fjc.gov/node/1393676) |\n| Born | 1951 in Washington, DC[2](https://www.fjc.gov/node/1393676) |\n| Education | B.A., Cornell University, 1973; J.D., Yale Law School, 1976[2](https://www.fjc.gov/node/1393676) |\n\n## Early life and education\n\nKronstadt was born in 1951 in Washington, DC.[2](https://www.fjc.gov/node/1393676) He received his undergraduate degree in government from Cornell University in 1973, graduating with distinction, and earned his law degree from [Yale Law School](https://www.edgepedia.org/yale-law-school) in 1976.[2](https://www.fjc.gov/node/1393676) • [1](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge)\n\n## Legal career\n\nAfter law school, [Kronstadt](https://www.edgepedia.org/kronstadt) clerked for Judge William P. Gray of the United States District Court for the Central District of California from 1976 to 1977.[2](https://www.fjc.gov/node/1393676) • [1](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge) He then practiced law in Washington, D.C. from 1978 to 1985, first as an associate and then as a partner at Arnold & Porter LLP.[2](https://www.fjc.gov/node/1393676) • [1](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge) After moving to Los Angeles in 1985, he was a partner at Blanc Williams Johnston & Kronstadt from 1985 to 2000, when its members joined Arnold & Porter LLP, and he remained a partner at Arnold & Porter in Century City until 2002.[2](https://www.fjc.gov/node/1393676) • [1](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge) During his 24 years in private practice, he handled complex civil litigation matters, including antitrust, corporate governance, trade secrets, copyright, securities regulation, and environmental issues.[1](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge)\n\nIn 2002, Kronstadt was appointed by Governor Gray Davis to the Superior Court of California, County of Los Angeles, where he served until 2011.[2](https://www.fjc.gov/node/1393676) • [1](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge) While on the state court, he chaired the Court's Community Outreach Committee and Outreach Governance Committee.[1](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge) He was active in the Los Angeles County Bar Association from 1997 to 2002, serving as Assistant Vice President, a member of the Executive Committee, and a Trustee, and received the association's first award as outstanding committee chair in 1998.[1](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge) He has been active with the Constitutional Rights Foundation, a Los Angeles-based nonprofit that educates youth about civic participation, serving on its Executive Committee and Board of Directors since 2004 and as its President from 2006 to 2007.[1](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge)\n\n## Federal judicial service\n\nKronstadt was nominated to the United States District Court for the Central District of California by President Barack Obama on November 17, 2010, and re-nominated on January 5, 2011.[2](https://www.fjc.gov/node/1393676) • [1](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge) The Senate confirmed him on April 12, 2011, by a vote of 96 to 0.[2](https://www.fjc.gov/node/1393676) • [3](https://voteview.com/rollcall/RS1120058) He received his commission on April 14, 2011, and was sworn in on April 25, 2011, presiding in Los Angeles in the Court's Western Division at the Edward R. Roybal Federal Building and Courthouse.[2](https://www.fjc.gov/node/1393676) • [1](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge) His appointment filled the vacancy created by the death of District Judge Florence-Marie Cooper in January 2010.[1](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge) He assumed senior status on April 1, 2022.[2](https://www.fjc.gov/node/1393676)\n\n## References\n\n1. [John A. Kronstadt Sworn In as District Judge, United States District Court for the Central District of California](https://www.cacd.uscourts.gov/news/john-kronstadt-sworn-district-judge)\n2. [Kronstadt Biography, Federal Judicial Center](https://www.fjc.gov/node/1393676)\n3. [Senate Roll Call Vote 112-2005-58, Voteview](https://voteview.com/rollcall/RS1120058)\n\n---\n*Topic: Encyclopedia › Society and history › Law and justice › Courts and legal practice › Legal biographies › United States judges › US federal judges › Article III judges (district and appellate) › United States district court judges › Surnames I to K*\n\n*Initially written Sep 27, 2026 · Reviewed: Sep 29, 2026 · Edited: Oct 15, 2026 · Last review: Sep 29, 2026*\n\n*Copyright 2026 EdgeChat AI, a subsidiary of Biostate AI.*\n\nLicense: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license\n", "same_as": [], "url": "https://www.edgepedia.org/john-a-kronstadt", "markdown_url": "https://www.edgepedia.org/john-a-kronstadt.md", "license": { "name": "Edgepedia Community License 1.0", "url": "https://www.edgepedia.org/edgepedia/license", "summary": "Free with credit, commercial use included. AI training is open to everyone. For other uses, organizations over USD 100M in revenue or 100M monthly users license separately.", "spdx": "LicenseRef-Edgepedia-Community-1.0" }, "credit": "\"John A. Kronstadt\", Edgepedia (EdgeChat), https://www.edgepedia.org/john-a-kronstadt. Edgepedia Community License 1.0.", "credit_md": "\"[John A. Kronstadt](https://www.edgepedia.org/john-a-kronstadt)\", Edgepedia (EdgeChat), [https://www.edgepedia.org/john-a-kronstadt](https://www.edgepedia.org/john-a-kronstadt). [Edgepedia Community License 1.0](https://www.edgepedia.org/edgepedia/license).", "credit_html": "\"John A. Kronstadt\", Edgepedia (EdgeChat), https://www.edgepedia.org/john-a-kronstadt. Edgepedia Community License 1.0.", "speakable": "John A. Kronstadt, also known as John Arnold Kronstadt, is an American jurist serving as a senior United States district judge in California, appointed by President Barack Obama in 2011." }