Steve Scalise
Possibly yet another "SS" decode from the POTUS tweet this morning.
Friday July 27th?
https://www.washingtonexaminer.com/policy/defense-national-security/jim-mattis-mum-on-source-of-mystery-scar
hmmm, sorry about that, it had to have happened before the 27th because I found this Reddit conversation dated the 25th.