Retroactive donation laws as political tool

When an incumbent party moves to change campaign‑finance rules retroactively after a rival receives large lawful donations, it weaponizes the legal framework to neutralize political competition and undermines predictable rules of democratic contest. That dynamic is different from ordinary reform because it targets specific past acts and risks delegitimizing both lawmaking and electoral outcomes. — If governments begin using retrospective finance rules to strip opponents’ resources, it changes how parties, donors and voters calculate risk and can erode trust in democratic institutions.