According to multiple quick counts [4, 13, 20, 22, 28], Roberto Sánchez edged Keiko Fujimori by a fraction — 50.14% to 49.86% — in Sunday's runoff. The margin is thin enough that final tallies may still shift, but the real story is not who won. It is that Fujimori, who topped the first round [8, 10, 17, 18, 25] and commanded the largest parliamentary bloc [8], failed to turn right-wing dominance into a decisive victory. Peru's right owns the legislature — Fujimori's Popular Force holds 41 deputies and 22 senators, with smaller right-leaning parties filling the gaps [8] — yet could not coalesce around its standard-bearer when it mattered.
The fracture began in the first round. Rafael López Aliaga, the far-right businessman who narrowly missed the runoff [8, 10, 17, 18], responded to his third-place finish by launching what multiple outlets describe as a disinformation campaign against electoral authorities [8, 10, 17], accusing them of fraud despite denials from the European Union and Peruvian officials [8, 10]. The National Jury of Elections ruled the complaints meritless and confirmed the runoff would proceed [8, 10, 18], but the damage was done: López Aliaga's supporters nursed grievance rather than rallying behind Fujimori. When the runoff arrived, some centre-right blocs endorsed her [23, 27, 30] while others — notably País Para Todos, which drew 1.3 million first-round votes [16] — declined to back anyone, insisting they would not "impose directives" on supporters [16].