Ekrem Imamoglu, the Mayor of Istanbul and a presidential candidate, has been detained amid a corruption investigation, accused of leading a criminal organization. His party, CHP, claims this is a coup attempt to undermine democracy. A four-day lockdown on public gatherings has been enforced in Istanbul, and Imamoglu has vowed to fight for democracy and justice. His university degree was annulled, which could prevent him from running for president. The situation raises concerns about the state of democracy in Turkey.