Premise (FEMA press release): On Aug. 15, 2026, FEMA announced “President Donald J. Trump Approves Emergency Declaration for Indiana,” citing “severe storms, straight-line winds, tornadoes and flooding beginning on August 11, 2026, and continuing.” (https://www.fema.gov/press-release/20260816/president-donald-j-trump-approves-emergency-declaration-indiana) → Inference: This is an official Presidential Emergency Declaration that explicitly names Indiana and identifies the incident as the severe storms and flooding beginning Aug. 11, 2026, satisfying the question’s criteria. Premise (Indiana DHS): The state’s DHS page confirms that on Aug. 15, 2026, the President approved an Emergency Declaration for Indiana following the Aug. 11 flooding. (https://www.in.gov/dhs/emergency-management-and-preparedness/disaster-declarations) → Inference: This corroborates the date and incident. → Conclusion: Such a presidential declaration existed on Aug. 15, 2026, i.e., on or before Aug. 26, 2026. Therefore, YES.