What would a second Donald Trump presidency mean for Canada? There has been much speculation, ranging from ripping up the Canada-U.S.-Mexico free trade agreement, to abandoning our country to the whims of Vladimir Putin unless we spend two per cent of our GDP on defence. But beyond these hyperboles, there are three very real dangers posed by the election of Trump 2.0 that politicians need to pay attention to, according to former U.S. ambassador to Canada Bruce Heyman, who presented them to a security conference in Ottawa earlier this week. And I’m sharing them here, because like a tsunami on the horizon, unless we get ready for them, they could swamp us in more ways than one.