https://dc.claremont.org/content/uploads/2022/09/Provocations-4-Holloway-Final.pdf
https://ec.europa.eu/commission/sites/beta-political/files/aviation.pdf
https://what-europe-does-for-me.eu/data/pdf/focus/focus03_en.pdf
https://washingtonmonthly.com/2024/02/05/its-not-just-the-border-the-trump-abbott-republican-nullification-crisis-is-here/