Yep that was the one, thanks!

https://www.reddit.com/r/flightradar24/comments/zptmxe/anyway_to_identify_this_plane/?utm_source=share&utm_medium=ios_app&utm_name=iossmf

I was looking at another post somewhere else as well about it but I don’t remember where. TOI is the callsign they typically use for interceptions. If you have Flightradar24 or ADSB exchange (Flightradar24 is an all you can get, ADSB can be accessed through the internet) you can rewind to earlier and watch the Cessna enter restricted airspace and then subsequently see the F15 come and intercept

Once in a lifetime opportunity some would say

F15. Biden is in Delaware so there is/was a Temporary Flight Restriction that extends through the city. A Cessna violated it so he got intercepted and escorted out by the F15