he's reinforcing disdain from foreigners to his followers. he is CONSTANTLY and INCESSANTLY advertising and campaigning.

CHIIIINA

sleepy joe

the radical left (*I remember when radical/radicalized were more widely used to describe Muslim/p.o.c's who had converted, etc.) was used to describe

I don't know

maybe

who knows

There a term for it, but it's like a mental 'earworm'. Every politician has their 'I have a dream' vocal tone, and tempo, and speech pattern.