Guilt by association.

This picture series is entitled “French Left split over referendum.” The opening page says:

“A battle is on for left-wing votes as France’s referendum on the EU constitution looms. Most supporters of the centre-right UMP party are expected to vote Yes, ignoring the far-right No campaign.

But many Socialists appear ready to defy party leaders by voting No, with the far-left. BBC News asked a selection of left-wingers for their views.”

Emphasis added.