From 2010 to 2018, Alexandre Basquin was the organizational secretary of the Northern Federation of the French Communist Party (PCF), which was then led by Fabien Roussel.[3]
In the 2011 cantonal elections, he was the Front de gauche candidate for the canton of Carnières, coming fourth with 15.44% of the votes cast.[4] In the 2015 departmental elections, he stood for the same party in the new Canton of Caudry, coming fourth with 11.62% of the votes cast.[5]
Elected mayor of Avesnes-les-Aubert in 2014, a municipality of 3,600 inhabitants in the Cambrésis region,[6][7] he has also been fourth vice-president of the Caudrésis Urban Community since April 17, 2014. - Catésis, responsible for Housing, Unsanitary Conditions, and the Local Housing Plan, a position he held from 2017 to 2020. After that date, his portfolios were reduced to Housing.[8]
He succeeded Éric Bocquet as senator for the Nord department following the latter's resignation,[9] who wanted to “prepare for the future and bring in the next generation.”[10]
He was his predecessor's parliamentary aide during his thirteen years in national office.[11]
He is a member of the Communist Party and sits on the Communist, Republican, Citizen and Ecologist group.
After Second inauguration of Donald Trump, Alexandre Basquin made headlines by calling for a mass exodus from social media in an open letter addressed to ministers, parliamentarians, the media, and all citizens.[12]