This event involves cities using local ordinances to block federal immigration detention facilities, representing a federalism conflict. Constitutional drivers: rule_of_law(3) for intergovernmental legal conflict over enforcement authority; separation(4) for state/local resistance to federal executive action creating vertical separation tensions; civil_rights(2) for immigration detention concerns but no direct rights violation. Mechanism modifier 1.15 for enforcement_action creating legal precedent. Scope modifier 1.15 for multi_state coordination. Base score 11.68 × 1.21 severity × 1.15 mechanism × 1.15 scope = 17.22. B-score: High media friendliness(7) with 'secret weapon' framing, moderate outrage_bait(6) around immigration detention, novelty(5) in local ordinance strategy. Layer 2 shows narrative_pivot(5) and pattern_match(6) with resistance narratives. Seven identical headlines indicate coordinated amplification, intentionality=7, intent_weight=0.55. Final B=22.05. Delta=-4.83. A<25 threshold, represents routine federalism tension without acute constitutional crisis or novel legal mechanism. This is normal intergovernmental conflict over immigration policy being amplified through coordinated media coverage.