 As with Marine Le Pen, who made the same choice to be present despite the appeal, he was booed by a group of demonstrators.In November 2019, Mélenchon further accused CRIF of practicing "blatant, violent and aggressive sectarianism, namely against me" after it asking him not to attend the memorial ceremony for Knoll more than 18 months earlier.No violence occurred at the march; police accompanied Mélenchon and Le Pen away from the proceedings.