Economic storm clouds hovering over Trump and global leaders

U.S President Donald Trump and French President Emmanuel Macron greet each other Saturday at the G-7 summit before a dinner at the Lighthouse of Biarritz, France. (AP Photo/Andrew Harnik)

BIARRITZ, France — Under the threatening clouds of a global economic slowdown, President Donald Trump is confronting the consequences of his preference to go it alone, with low expectations that the leaders of the richest democracies can make substantive progress on an array of issues at their summit in France.