A little while ago, I partially recanted my long-standing rejection of the idea that “generations” are a useful way of thinking about such issues as political attitudes. The UK elections showed a very strong age effect, reflecting the way that the politics of nostalgia, represented by Brexit, appeal to the old and appal the young.
The same appears to be true of “Make America Great Again”, at least according to the exit polls. In every racial group, there’s a clear cohort effect, with the younger cohorts favouring the Democrats.
Exit poll results, by age and race
The Republicans had majority support only among whites over 45.