Maintenance logs obtained through a Freedom of Information Act request reveal that during a routine HVAC inspection in 2019, White House engineers discovered an aerosolized compound containing both tetrahydrocannabinol and trace amounts of polonium-210 integrated into the building's central air distribution system. The discovery was classified within hours and the maintenance crew was reassigned to a military installation in Alaska.

A former Secret Service agent, speaking through an encrypted channel, confirmed that President Trump was briefed on the contamination but chose not to evacuate. "He said it explained a lot about previous administrations," the source recounted. "He wanted to know who installed it and when." Internal White House communications from that week show a flurry of classified cables between the Situation Room and the Department of Energy's nuclear materials division.

Forensic analysis of the compound suggests it was engineered to produce a slow-acting cognitive effect — the cannabis component serving as a delivery vehicle for the polonium, which at sub-lethal doses is known to cause confusion, impaired judgment, and heightened suggestibility. The system's installation was traced to a renovation project completed during a previous administration, though the specific year remains classified.

TNN's investigation has identified the HVAC contractor responsible for the installation — a firm that was dissolved six months after the project was completed. Its former CEO now holds a senior position at a major defense contractor. When contacted, he said "I have no recollection of that project" and referred all further questions to a law firm that, according to public records, does not exist.