1. An economic crisis in Turkey, stirred by President Trump:

The Turkish lira plunged to a record low on Friday, accelerated by internal political turmoil, soaring inflation and a burgeoning conflict with Mr. Trump over a jailed American pastor.

Mr. Trump announced plans to increase tariffs on Turkish steel and aluminum, which increased the risk that Turkey’s problems could destabilize economies well beyond the region.

That’s not the only issue: There is also widespread fear among foreign investors that the populist, authoritarian government of President Recep Tayyip Erdogan is pursuing irresponsible economic policies.