Corner readers like a challenge. This one doesn’t strictly follow the rules for a higgledy-piggledy — the first line’s supposed to be a nonsense double-dactyl — but … not bad.

Quite inexplicably
Corner’s John Derbyshire
Said double dactyls
Aren’t easy to write.
Started at lunchtime
Picked up a pencil
Finished the thing
Before taking a bite.

Not belonging to the dactylic fraternity, our president is hard to squinch in to this format. I’ll have a go, though.

Higgledy-piggledy
44th president
Penned a long book titled
Dreams from My Pa.
Millions, inspired by this
Autobiography,
Voted for post-racial
Utopia.