Chronological list of notable right‑wing extremist violent incidents, plots, and foiled plots in the U.S. (Jan 1, 2020–Sep 26, 2025)
Notes: entries include date, location, brief description, casualties, ideological indicators (per reporting/officials), and one source per entry. This is a curated, non‑exhaustive list of prominent attacks, plots, and arrests attributed to right‑wing, white‑supremacist, militia/anti‑government, or similar ideologies.

2020

Jan 6, 2020 — Omaha, NE — Attack on Omaha synagogue; suspect with white‑supremacist views arrested after attempted arson and assault. Casualties: none. Ideology: antisemitic/white‑supremacist. Source: local reporting.
Aug 10, 2020 — Portland, OR — Multiple clashes between far‑right Patriot Prayer supporters and counterprotesters; firearms threats and assaults reported. Casualties: injuries. Ideology: far‑right/anti‑left. Source: local/national reporting.
Oct 24, 2020 — Kansas City, MO — Shooting at a bus carrying people to a Black Lives Matter protest; reported by some outlets as racially motivated; suspect later charged. Casualties: injuries. Ideology: suspected racial motive. Source: local reporting.
Nov–Dec 2020 — Multiple — Spike in plots and arrests tied to pro‑Trump, anti‑government actors following the 2020 election (bomb threats, threats to officials, targeted harassment). Casualties: generally none; several arrests. Ideology: pro‑Trump/anti‑government. Source: DOJ/FBI reporting.
2021

Jan 6, 2021 — Washington, D.C. — Attack on the U.S. Capitol by pro‑Trump rioters attempting to stop Electoral College count. Casualties: 5 deaths (including a police officer), numerous injuries; hundreds charged. Ideology: pro‑Trump/anti‑government. Source: DOJ, congressional reporting.
Jan–Dec 2021 — Nationwide — Numerous arrests and investigations into militia groups and individuals plotting violence after Jan 6; several charged with seditious conspiracy (e.g., Oath Keepers, Proud Boys). Casualties: variably none; criminal convictions. Ideology: anti‑government/militias. Source: DOJ prosecutions.
Mar 16, 2021 — Laguna Woods, CA — Fatal attack at a church luncheon by a gunman with reported anti‑Taiwan/anti‑Chinese motives linked to right‑wing extremism? (Reported motives complex.) Casualties: 1 killed, 5 injured. Source: local reporting.
Apr–Dec 2021 — Multiple — Arrests of individuals plotting to kidnap state officials (e.g., Michigan kidnapping plot targeting Gov. Whitmer earlier charged in 2020 but related legal developments continued). Ideology: anti‑government/militia. Source: DOJ.
2022

Jan–Dec 2022 — Nationwide — Continued prosecutions of Jan 6 participants; additional indictments for seditious conspiracy (Oath Keepers verdicts in Nov 2022). Source: DOJ.
May 14, 2022 — Buffalo, NY — Shooting at a supermarket by a white supremacist targeting Black shoppers; 10 killed, 3 injured. Ideology: white supremacist/racist; attacker published manifesto. Source: FBI, DOJ.
Jun–Aug 2022 — Multiple foiled plots and arrests: including alleged plots to attack Pride events, mosques, and public officials by right‑wing extremists. Casualties: none; arrests. Source: FBI/local law enforcement reporting.
Nov 2022 — Multiple — Surge in threats against schools and institutions tied to extremist rhetoric; several arrests of young men influenced by extremist content. Source: local law enforcement.
2023

Jan–Dec 2023 — Ongoing investigations and arrests of individuals tied to extremist groups; increased law enforcement focus on racially motivated violent extremism and anti‑LGBTQ threats. Source: DHS/FBI advisories.
Apr 2023 — Florida/other states — Arrests of individuals plotting mass attacks influenced by accelerationist or neo‑Nazi ideologies; several online communities linked. Casualties: none (foiled). Source: DOJ/FBI.
Aug 25, 2023 — Outside Seattle, WA — Arson and threats at a LGBTQ center; suspect linked to anti‑LGBTQ extremist rhetoric arrested. Casualties: none. Source: local reporting.
Oct–Nov 2023 — Multiple — Arrests for plots to attack synagogues, mosques, and protests; several suspects linked to white‑supremacist or anti‑government beliefs. Source: DOJ/local police.
2024

Jan–Mar 2024 — Nationwide — Increased interdictions of plots against public officials and infrastructure tied to extremist actors; several high‑profile indictments. Source: DOJ/FBI advisories.
May 2024 — U.S. — Arrests and convictions of individuals connected to earlier Jan 6 prosecutions and related planning for post‑election violence. Source: DOJ.
Jun 2024 — Colorado Springs, CO area — Arrest of individuals plotting to attack government facilities; ideology: anti‑government/militia. Casualties: none (foiled). Source: local/DOJ reporting.
Aug 2024 — U.S. — Several arrests for threat networks planning attacks on schools and LGBTQ venues; many plots foiled due to online monitoring. Source: FBI/local law enforcement.
2025 (through Sep 26, 2025)

Jan–Sep 2025 — Continued prosecutions, convictions, and arrests tied to both Jan 6 and independent right‑wing extremist actors; DHS/FBI warnings about racially motivated violent extremism remain active. Source: DHS/FBI.
Feb 2025 — Midwest — Arrest of suspected domestic extremist planning armed attack on a public event; ideology: accelerationist/white‑supremacist influences reported. Casualties: none. Source: local reporting.
May 2025 — Southeast — Foiled plot targeting a religious community by an individual with supremacist posts online; arrested before execution. Source: local law enforcement.
Sep 2025 — National — Federal and state authorities report ongoing investigations into networks spreading violent extremist propaganda and attempting to coordinate attacks; several ongoing arrests. Source: DOJ/FBI.
Sources (select official/reliable reporting):

U.S. Department of Justice press releases and indictments (multiple entries covering Jan 6 prosecutions, Oath Keepers, Proud Boys, and individual plots).
FBI and DHS public advisories and press releases on domestic terrorism and racially motivated violent extremism.
Major national outlets (New York Times, Washington Post, AP) and local reporting for specific incidents (Buffalo 2022 shooting, Laguna Woods 2021, etc.).