Not the first time Powell and DJT have met, privately.
https://nypost.com/2025/05/29/business/fed-chair-powell-trump-meet-at-white-house-heres-what-was-discussed/
DJT relies on trusted individuals, like his kids, to personally deliver messages to counterparties. Him going himself raise the importance, and removes the risk of misinterpretation, and adds the opportunity for question time.