The European Parliament is back in session with the newly-elected 720 lawmakers gathering in Strasbourg for the first plenary of the 10th legislature, set to begin on Tuesday. It marks the dawn of a five-year mandate that is poised to be the rowdiest in history: following the June elections, over a quarter of MEPs now sit with hard- and far-right groups, posing a direct challenge to the pro-European centrist parties that, despite holding onto a governing majority, worry an increase in polarisation could dampen the bloc’s long-term ambitions and foster legislative paralysis. The latest addition…