Disgraced former CNN host Don Lemon is suing disgraced current Twitter/X owner Elon Musk over the canceled deal for Lemon’s Xitter streaming show. The lawsuit was filed in a Superior Court of San Francisco, and alleges that Musk canceled the show because of Lemon’s pointed questions about Musk's ketamine use in the show’s very first interview (which was an interview with Elon Musk.) [NY Times]San Francisco's retail vacancy rate for the second qu…