The two had called each other “fascist” and “communist,” but when President and New York City Mayor-elect faced reporters on Friday, they were just two iconoclastic New York politicians who were all smiles.

The much-anticipated face-to-face showed how the politicians' shared love of New York City — and no doubt some political calculus — could paper over months of insults. Both men used a plainspoken, wry approach tailor-made for the age of social media to make their points, and each left the meeting with something he needed.

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