Justin Trudeau, Politician and Star of His Own Viral Universe

Experts say that politicians like Mr. Trudeau, Mr. Trump and President Obama have been ahead of the curve in harnessing social media’s paradigm-changing power. Their ability to shine in bite-size media is reminiscent of John F. Kennedy’s prowess compared with Richard M. Nixon’s in the first televised presidential debate in 1960. And tools including Facebook, Twitter and Instagram have given these politicians a significant portion of control in disseminating their own messages.

.. Ms. Olin, the social media strategist for the Obama campaign, said that social media tools might allow adept politicians in the future to paper over nuance or even obscure their beliefs, instead favoring moments that would most likely take off on social media.