Paul Hosford: The EU has survived because of unity and consensus. Will June's election's threaten that? 

A rise in euroscepticism is being seen across the continent, with research showing populist eurosceptic parties are likely to come first in nine countries and second or third in nine more

The EU has survived many crises in the past 20 years. Picture: AP/Virginia Mayo

The list of existential threats the EU has faced in the last 20 or so years is extensive.