Federal appeals court ruling DACA illegal represents substantial constitutional damage (A=37.71) across multiple dimensions. ELECTION (3.5): Directly impacts voting-eligible population and creates major campaign issue affecting hundreds of thousands. RULE_OF_LAW (4.0): Judicial determination that executive branch exceeded authority, though through proper legal channels. SEPARATION (3.5): Strikes at executive power boundaries and congressional vs. executive immigration authority. CIVIL_RIGHTS (4.5): Threatens legal status, work authorization, and deportation protection for ~600k beneficiaries, creating profound uncertainty for vulnerable population. CAPTURE (2.0): Reflects broader judicial appointment strategy effects. Severity multipliers: durability 1.1 (appeals process continues, Supreme Court likely), reversibility 1.0 (Congress could legislate solution), precedent 1.2 (significant implications for executive immigration actions). Mechanism modifier 1.15 for judicial action with immediate legal effect. Scope 1.1 for federal-level ruling affecting broad population. B-score (18.47) reflects high outrage potential and media coverage of immigration issue, but substantially lower than constitutional impact. D-score of +19.24 clearly places this on List A as genuine constitutional event with real-world consequences for hundreds of thousands of people.