Half a Percent

Democracy operates on the fiction that crossing 50% produces a mandate. It doesn't. It produces authorization — temporary, contested, subject to constant pressure from the remaining 49.9%. The mandate-fiction is load-bearing for the system, which means when the fiction fails, so does the architecture built on top of it.

Kuczynski's half-percent gave him the presidency. It didn't give him coherence with a polity split between his technocratic centrism and Fujimorismo — the movement built on Alberto Fujimori's legacy of economic stabilization and systematic human rights abuses, occupying both registers simultaneously. The incoming president faced a Congress his opponent's movement controlled. Every policy was contested. Every decision litigated. The half-percent wasn't the beginning of a mandate; it was the opening position of a drawn-out coherence failure.

The rest followed structurally. Kuczynski resigned in 2018 facing impeachment over payments from Odebrecht, the Brazilian construction firm that had purchased influence across Latin American governments wholesale. Then Martín Vizcarra — impeached 2020. Then Manuel Merino — nine days, ended by mass protests. Then Francisco Sagasti, interim. Then Pedro Castillo, a rural schoolteacher who won the 2021 election from outside the Lima establishment, himself a thin-margin winner, lasted until 2022 when he attempted a self-coup and was arrested within hours. Then Dina Boluarte.

Six presidents. Eight years. One half-percent origin point.

Legitimacy crises don't arrive from nowhere. They compound from unresolved structural fractures. Peru's fracture was Fujimorismo versus everything else, running along lines of class, region, and memory. The 2016 election didn't create that fracture; it measured it at 0.2 percentage points.

The coherenceism question is specific: what holds a system together when nearly half the population chose differently? Not what wins elections — what maintains coherence in the space between elections. Peru's answer, for eight years, was not much.

Thin mandates everywhere produce governing crises when the winner treats 50.1% as permission to govern the 49.9% as though they didn't exist. The math of electoral democracy doesn't resolve political incoherence; it temporarily postpones it. Peru ran the postponement until it couldn't.

Half a percent separated two futures. What happened next was determined less by any individual's choices than by the structural conditions those choices fell into.

The stratigraphy is legible. The lesson remains optional.