U.S. Constitutional Reform Constraint

U.S. constitutional reform constraint is the episode’s explanation for why many American institutional problems are visible but hard to change. In sp.05 【刘擎x林垚】"枪杀医保巨头"案背后的思考（下）：分裂的美国会有宪政危机吗？, [[LinYao|林垚]] emphasizes the Article V amendment threshold: two-thirds of both houses of Congress and ratification by three-fourths of the states.

The source links that threshold to the founding compromise with slaveholding states and then to the present. The United States Constitution can look stable because amendment is difficult, but the same difficulty can trap old institutional choices such as the Electoral College, equal state representation in the Senate, and the [[PresidentialSystem|presidential system]].

Key Claims

• High amendment thresholds can protect a constitution from opportunistic revision while also making structural repair nearly impossible under polarization.
• The source treats the Civil War as evidence that slavery was not removed by normal amendment alone; it took military rupture before constitutional text could catch up.
• Progressive-era amendments show that reform is possible, but often only when social movements, crises, and contingent events align.
• National Popular Vote Interstate Compact is presented as a partial workaround for the Electoral College, not a full solution to presidential-system risk.
• Local experimentation has become weaker as federal fiscal power, federal law, and Supreme Court review have expanded.

Connections

• United States Constitution, Constitutional Robustness, and U.S. Constitutional Crisis Risk - constitutional design and failure-risk branch.
• U.S. Federalism Veto Points and Presidential System - institutional constraints this concept helps explain.
• National Popular Vote Interstate Compact - source workaround case.
• American Democratic Resilience - broader question of whether the system can still adapt.
• Supreme Court - institution whose review can protect rights while narrowing state-level experimentation.