Turkish riot police fired tear gas and forced their way into the main opposition party’s headquarters to evict its ousted leadership on Sunday, fuelling a crisis at the heart of Turkey’s democracy.Clouds of tear gas billowed within the Republican People’s Party (CHP) building while those inside shouted and threw objects at the entrance as police broke through a makeshift barricade. There were no reports of injuries during the intervention.A Turkish court ousted CHP leader Ozgur Ozel on...