Mezue ahịrịokwu na-esonụ: Mgbe ntuli aka nke 1968, a họpụtara Pintor ka ọ bụrụ onye nnọchiteanya nke ndị nnọchiteanya na Italian Communist Party, nke ọ hapụrụ mgbe e mesịrị.
N'afọ 1968, ndị Soviet Union wakporo Czechoslovakia. Na 1969, Pintor bụ otu n'ime ndị guzobere, ya na Lucio Magri, Rossana Rossanda na Luciana Castellina, nke akwụkwọ akụkọ aka ekpe Il manifesto: Pintor mechara họpụta onye isi nchịkọta akụkọ site na 1971 ruo 1975, site na 1976 ruo 1978 na site na 1991 ruo 1995.