The NUPES (New Ecological and Social Popular Union) list, led by La France Insoumise (FI), is seen by left-wing workers and youth as the best vehicle to strike blows against the right in June’s legislative elections. The French Marxists critically support voting for NUPES candidates. But we must say that this alliance with discredited, right-wing reformist parties risks demobilising FI’s support base, and will undermine their ability to carry out social reforms in government, in the event of an NUPES majority.