Since the tragedy in Lyon on February 14, activists from radical left La France Insoumise have faced rising hostility on the ground. Other left-wing parties are now pressed to say if they'll ally with LFI locally.

The leader of the French radical left said far-right groups had laid a 'trap' ahead of the street fighting that led to the death of far-right activist Quentin Deranque.

Since the tragedy in Lyon on February 14, activists from radical left La France Insoumise have faced rising hostility on the ground. Other left-wing parties are now pressed to say…