Sure - I was just confirming that Biden is, in fact, supposed to be in Brussels right mow, which supports the idea that Biden is indeed on that plane, not Trump. I wonder if it flew as AF1 earlier in the trip?
Yes, I heard it did fly as “AF1” on the outbound trip.
The rationale that the “AF1” designation is a US-specific internal issue, thus the use outside the US as “AF1”, and inside as “NA”/”SAM239”, makes a lot of sense.