Alberto Fujimori
Four presidents of Peru have attempted to resign: Guillermo Billinghurst (forced resignation), Andrés Avelino Cáceres, Alberto Fujimori, and Pedro Pablo Kuczynski. Two presidents have been impeached unsuccessfully, Pedro Pablo Kuczynski and Martín Vizcarra, and three have been successful, Guillermo Billinghurst, Alberto Fujimori and Martín Vizcarra.