- Gun Violence Archive (GVA) — N=5,900+, 2013–2026
- Violence Prevention Project — strict definition, through 2024
- Mother Jones mass shootings database — 1982–2025
- Williams Institute — Trans population estimates (August 2025)
- FBI Active Shooter Incidents Report 2024
- CPRC / John Lott — opposing claim, tested and examined
- FactCheck.org, PolitiFact, Snopes — independent verification
- ADL, GLAAD, Human Rights Campaign
- Heritage Foundation Election Fraud Database — 1,620 cases, Dec 2025
- Brennan Center for Justice — voter fraud research, 2017–2024
- DOJ Public Integrity Section — prosecution data & 2023 report
- CISA — "Most secure election in American history" (Nov 12, 2020)
- Georgia State Election Board — America PAC reprimand (Feb 18, 2026)
- MIT Election Lab, Brookings Institution, Cato Institute, GAO
- 60+ 2020 election lawsuit court records across 12 states
- Cochrane Systematic Review (2021) — 138 studies, 23M+ children
- Hviid et al. (2019, Ann Intern Med) — 657,461 Danish children
- Jain et al. (2015, JAMA) — 95,727 U.S. children
- CDC VSD, VAERS, V-safe surveillance systems
- Pfizer & Moderna Phase 3 trials (73,968 participants)
- Brighton Collaboration standardized case definitions
- IOM/National Academies 2013 Schedule Review
- WHO GACVS vaccine safety assessments