Leaders of some of the world's wealthiest countries have descended on a luxury mountain lodge nestled in Canada's Rockies for this year's G7 summit. The elite gathering comes as Western allies face numerous crises, from conflicts on three continents to global economic instability.

Prime Minister Mark Carney and Trump are scheduled to meet Monday morning. Trump spoke Monday morning about the “different concepts of trade” him and Mark Carney have, as well as criticized ...