US diplomats asked if non-whites qualify for Trump refugee program for South Africans

I was going to tell one of those "two white guys and a black guy" jokes from my youth here with immigration in place of St. Peter administering one final test, but that's a lot of fucking work to tell a joke that has been in circulation for 50 years. So I go to look it up to copy/paste and I find out the joke is based on actual Jim Crow laws preventing black people from voting with literacy tests.

Anyway, the punchline is "Spell chrysanthemum." I'm sure you can work backward to figure out the rest of the joke and how it relates.