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Hi!
What does the following sentence mean, please?
This sentence is from a book I just read.

Most Americans may balk at caning people, but from the president on down they don't mind killing them.

Thanks!Emotion: smile
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All the people (starting with the president at the top, to the common citizens at the bottom).

The sentence shows the irony of accepting capital punishment but not corporal punishment.
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The president is at the top of the hierarchy of power in the US government.

"The president on down" means everyone in that hierarchy; from the top all the way to the lowest-ranking person.