@bikepedantic the go to would be "Darling Nikki" with the inflection of a contemptuous sneer, but that's not Trump's style (nor probably in his cultural reference library.)
@KenDeuel my best guess is that he just starts calling her "Miss Nimarata Randhawa," stretching out the vowels and vamping up the mispronunciations, etc
Trump
@KenDeuel maybe he even plays the classics, and starts "just asking questions" about her birth certificate