Sadiq Khan provoked anger on Friday when he tweeted about having attended a thanksgiving service for Her Majesty - almost 45 minutes before the event was due to begin. Khan did attend proceedings at St Paul's Cathedral, which begun at 11:30, but tweeted about it in past tense at 10:51.
Twitter users were quick to point out his embarrassing gaffe.
Khan later deleted the tweet and replaced it with another after the service had finished.
The event was attended by political figures from across the UK, including Drakeford, Sturgeon and Starmer, plus the PM and all living former PMs from Major to May.