**Aleksandar Vučić resigned as president on September 27, 2026, to lead his party’s parliamentary campaign for prime minister, triggering a constitutional requirement for an early presidential election within 90 days.** Acting President and National Assembly Speaker Ana Brnabić now holds sole authority to call the vote, which must occur by late December 2026 at the latest, with possible dates discussed in November or December. The snap parliamentary election scheduled for October 25 has delayed focus on the presidential timeline, while analysts note procedural debates over the exact deadline and potential alignment with post-election government formation. Student-led protests stemming from the 2024 Novi Sad disaster and opposition challenges add pressure, though the ruling SNS maintains organizational advantages. Trader sentiment centers on Brnabić’s announcement timing amid the parliamentary campaign and Expo 2027 preparations.