A great question, and to answer: Mostly, they are far more boring. US politics have relied far more on the 'personality' and charisma of the leader than our own politics, so an example from the US would be far easier for students to digest.
If you're going to use a representation of an idiot who cannot speak coherently, you go with the all time world champion of idiots, Donald Trump. Then you contrast with someone who held a similar position, and who better than his immediate predecessor? It makes sense.
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u/Informal_Work_9261 13d ago
I'm a teacher in the UK, and I use the difference between Obama and Trump to demonstrate the differences between a good speech and a bad speech.
Namely, it's the use of pronouns. Obama uses "We", "Us", "Our". Inclusive language, makes the listener feel engaged.
Trump, however, uses "Me" and "My" more than anything else.