Of all the sights during Trump’s first trip abroad, his handshake with France’s youngest ever president, Emanual Macron, was the most memorable as well as symbolic. At their first meeting ahead of a NATO summit in Brussels on Thursday, the two men locked hands for so long and hard, their knuckles turned white. When Trump tried to let go first, the French leader held the shake for a few seconds more. Both men’s jaws seemed to clench.