Complex sentence: Bayrou said that France was "at extreme risk", requiring an "exceptional response", adding that the alliance did not mean that MoDem would be subsumed by En Marche !
Split into simpler sentences: Bayrou said that France was at "extreme risk" and an "exceptional response" was called for. He stated that the alliance did not mean that his Mouvement Démocrate would be subsumed by En Marche!