The campaign became more intense when it became known that Neruda was a candidate for the 1964 Nobel Prize, which was eventually awarded to Jean-Paul Sartre (who rejected it).
Kampanye itu menjadi kian intensif ketika diketahui bahwa Neruda menjadi salah satu kandidat untuk Hadiah Nobel 1964, yang akhirnya diberikan kepada Jean-Paul Sartre.