Late Show, Stephen Colbert walked viewers through the various ways President Donald Trump went alpha-dog and metaphorically peed on the bushes at the NATO summit in Brussels this week. That includes Trump initiating another of his hilarious handshake matches, with French President Emmanuel Macron. Colbert read from the White House press pool description of the handshake: Each president gripped the other's hand with considerable intensity, their knuckles turning white and…