| US-A-00 | The United States in the Cold War — Containment, the National-Security State, and the Superpower Rivalry (1945–1991) | 1945 – 1991. | Fact-checked | 14,199 | 15 |
| US-A-01 | Hurricane Katrina (August 2005) — Federal Response, Levee Collapse, and the Long Arc of Disaster Federalism (August 23, 2005 – Present) | August 23, 2005 through the 2021 Hurricane Ida response and ongoing PKEMRA-era emergency-management… | Fact-checked | 15,378 | 2 |
| US-A-03 | The 2007–2008 Financial Crisis and the Troubled Asset Relief Program — From BNP Paribas to Dodd-Frank (August 2007 – July 2010) | August 9, 2007 through July 21, 2010 | Fact-checked | 17,449 | 8 |
| US-A-05 | The 2008 Election and the Bush–Obama Transition — From Iowa Caucus to the January 20, 2009 Inauguration (January 3, 2008 – January 20, 2009) | January 3, 2008 through January 20, 2009 | Verified | 13,888 | 0 |
| US-B-01 | Obama First-Term Government Architecture (2009–2013) | November 4, 2008 through January 21, 2013 | Fact-checked | 15,597 | 3 |
| US-B-02 | The American Recovery and Reinvestment Act of 2009 — Design, Passage, Implementation, and the Political-Economic Aftermath (December 2008 – November 2010) | December 2008 through November 2010 | Fact-checked | 14,771 | 7 |
| US-B-03 | The Affordable Care Act — Passage (2010), Court Tests (2012, 2015, 2021), and Implementation Through 2024 | 1989 through 2024 | Fact-checked | 16,282 | 4 |
| US-B-04 | 2010 Citizens United Decision and Campaign Finance | 2002–present | Fact-checked | 13,537 | 10 |
| US-B-05 | Obama Second-Term Government Architecture (2013–2017) | January 21, 2013 through January 20, 2017 | Fact-checked | 16,929 | 6 |
| US-B-06 | The 2015 Iran Nuclear Deal (JCPOA) — Negotiation, Design, Withdrawal, Reconstitution Attempts (2003–2026) | August 14, 2002 through May 15, 2026 | Fact-checked | 13,632 | 4 |
| US-B-07 | The 2016 Election and the Trump Victory — From the June 16, 2015 Trump Tower Announcement to the January 20, 2017 Inauguration (June 16, 2015 – January 20, 2017) | June 16, 2015 through January 20, 2017 | Verified | 11,947 | 0 |
| US-C-01 | Trump-1 Government Architecture (2017–2021) | November 8, 2016 through January 20, 2021 | Fact-checked | 10,933 | 2 |
| US-C-02 | The 2017 Tax Cuts and Jobs Act — Pre-History, Reconciliation Path, Principal Provisions, Macroeconomic and Distributional Effects, and the 2025 Expiry Crisis | 2014 through 2025 | Fact-checked | 12,992 | 2 |
| US-C-03 | The 2018–2019 China Trade War — Section 232 and Section 301 Tariffs, Chinese Retaliation, the January 2020 Phase One Agreement, and the Biden-Trump-2 Continuation | 2001 through 2025 | Verified | 14,699 | 0 |
| US-C-04 | The Mueller Report (March 22, 2019) — The Special Counsel's Office Investigation Into Russian Interference and Obstruction (May 17, 2017 – March 22, 2019; Aftermath Through 2024) | May 9, 2017 through July 24, 2019 | Fact-checked | 15,663 | 11 |
| US-C-05 | First Impeachment (December 2019 – February 2020) — Ukraine Quid Pro Quo | March 22, 2019 through February 5, 2020 | Verified | 15,395 | 0 |
| US-C-07 | January 6, 2021 Capitol Attack and the Second Impeachment | November 3, 2020 through January 20, 2025 | Verified | 10,128 | 0 |
| US-C-08 | The COVID-19 Response under Trump-1 — From the January 2020 Snohomish County Index Case to the January 20, 2021 Transition | January 20, 2020 through January 20, 2021 | Fact-checked | 12,932 | 10 |
| US-D-01 | Biden Administration Architecture (2021–2025) | 20 January 2021 through 20 January 2025 | Verified | 4,467 | 0 |
| US-D-02 | The American Rescue Plan: Pandemic Stimulus, Inflation Politics, and the Limits of Democratic Governance (2021–2022) | 2021–2022 | Verified | 7,429 | 0 |
| US-D-03 | August 2021 Afghanistan Withdrawal | October 7, 2001 through 2024 | Fact-checked | 12,238 | 6 |
| US-D-04 | The Infrastructure Investment and Jobs Act of 2021 — The Bipartisan Framework, the House Progressive Holdout, the Landrieu Implementation Coordination, and the Long-Arc Question of Bipartisan Major-Legislation Under Polarized Conditions (November 2020 – 2025) | November 2020 through 2025 | Fact-checked | 16,207 | 5 |
| US-D-05 | The CHIPS Act and the Inflation Reduction Act: Industrial Policy Revival and Green Transition (2022–2025) | 2022–2025 | Fact-checked | 6,786 | 7 |
| US-D-06 | Dobbs and the Post-Dobbs Federal-State Settlement | 2018–present | Fact-checked | 4,513 | 6 |
| US-D-07 | The 2024 Election — Biden's Withdrawal, the Harris-Walz Substitute Campaign, and the Trump Restoration (February 25, 2023 – January 20, 2025) | February 25, 2023 through January 20, 2025 | Fact-checked | 13,898 | 11 |
| US-D-08 | The Trump-2 Cabinet and the First Hundred Days of the Second Trump Administration (January–April 2025) | November 6, 2024 through April 30, 2025 | Fact-checked | 18,067 | 32 |
| US-D-09 | The 2025 IEEPA Tariff Regime — From Day-One Threats to Liberation Day to the Court Challenges (January–May 2025) | November 2024 through May 14, 2025 | Fact-checked | 18,464 | 19 |
| US-D-10 | Trump-2 Tariff Architecture — IEEPA Foundations, Section 232/301 Expansions, and the 2025–2026 Trade War | April 2, 2025 through May 2026 | Fact-checked | 18,435 | 32 |
| US-E-01 | Trump-2 Government Architecture — Cabinet Construction, the Executive Office, Personnel Machinery, and Article II Maximalism as a Governing System (January 20, 2025 – August 2026) | January 20, 2025 through August 30, 2026 | Fact-checked | 12,758 | 23 |
| US-E-02 | DOGE, Schedule F Restoration, and the Federal Reductions-in-Force — From the November 2024 Musk-Ramaswamy Announcement to the May 2025 Musk Departure | November 12, 2024 through May 30, 2025 | Fact-checked | 17,204 | 21 |
| US-E-04 | Trump-2 Mass Deportation, ICE Operations, the 287(g) Revival, and the Sanctuary-Cities Federalism Conflict (January 2025 – April 2026) | January 20, 2025 through April 30, 2026 | Fact-checked | 16,243 | 83 |
| US-E-05 | The Trump-2 Federal-Judiciary Confrontation — The SCOTUS 2025 Term Docket, Universal Injunctions, District-Court Showdowns, and the Article III Contest (January 2025 – April 2026) | January 20, 2025 through April 30, 2026 | Fact-checked | 15,366 | 74 |
| US-E-06 | Trump-2 and the Universities — Federal Funding Freezes, Antisemitism Enforcement, the Indirect-Cost Cap, and the Higher-Education Confrontation (2025–2026) | January 20, 2025 through April 30, 2026 | Fact-checked | 13,297 | 78 |
| US-E-07 | Trump-2 and the Expansion of Executive Power — Schedule F, Impoundment, and Article II Maximalism (2025–2026) | January 20, 2025 through May 2026 | Fact-checked | 13,966 | 51 |
| US-E-08 | The 2025 One Big Beautiful Bill Act — Tax Cuts, Medicaid, and the Reconciliation Fight (2025–2026) | January 2025 through May 2026 | Fact-checked | 12,057 | 60 |
| US-F-01 | US–China Strategic Competition — From "Responsible Stakeholder" to Confrontation Across Five Administrations (2005–2026) | 2005–2026 | Fact-checked | 10,279 | 9 |
| US-F-02 | The US–Russia Bilateral Across Four Phases — Reset, Rupture, Confrontation, and Negotiation (2005–2026) | 2005–2026 | Fact-checked | 11,990 | 7 |
| US-F-03 | The Iran Nuclear File — JCPOA, Withdrawal, and the 2025 Strikes (2005–2026) | 2005–2026 | Fact-checked | 11,432 | 41 |
| US-F-04 | US–Israel Relations and the Gaza War (October 2023–2026) | 2023–2026 | Fact-checked | 11,446 | 48 |
| US-F-06 | The US–Ukraine Bilateral from the Budapest Memorandum to the April 2025 Minerals Deal — Aid Packages, Patriot Politics, and the Trump-2 Pivot (1994–2025) | 5 December 1994 – 14 May 2025 | Fact-checked | 22,937 | 14 |
| US-F-07 | US–China Strategic Decoupling — Export Controls, Outbound Investment Screening, and the Small-Yard High-Fence Doctrine (2022–2026) | 7 October 2022 – 19 May 2026 | Fact-checked | 15,576 | 4 |
| US-F-08 | The US–Russia Bilateral Under Trump-2 — From the Riyadh Track to the Witkoff Shuttle (2025–2026) | 2025–2026 | Fact-checked | 18,742 | 29 |
| US-G-01 | US Healthcare — the ACA, Medicaid Expansion, IRA Drug Negotiations, and the Trump-2 Recalibration (2010–2026) | March 2010 through May 2026 | Fact-checked | 12,952 | 61 |
| US-H-PRES-01 | George Walker Bush (1946–) | 1946– | Fact-checked | 9,129 | 11 |
| US-H-PRES-02 | Barack Hussein Obama II (1961–) | 1961– | Fact-checked | 15,446 | 7 |
| US-R-01 | USA Governance Books Canon | 2005–present | Fact-checked | 7,004 | 6 |