Donald Trump supporters heckle London Mayor Sadiq Khan during speech at Fabian Society

The speaker welcomes attendees to the Philippines Society event, sharing a personal story about not receiving a P-45. They express hopes for the event's success and discuss distractions caused by certain individuals, humorously referred to as 'very stable geniuses.'

What was not served to the speaker, according to their statement?

What phrase does the speaker use to describe certain individuals?