China trade wars.
We'll likely see trade negotiations between China and the USA suddenly start moving again before the month is out. They're waiting for the results of the mid-terms. If the Republicans do well then China will shrug and start making some concessions because Trump's not going anywhere. If the Democrats surge then China will push harder because Trump will be politically very insecure. Either way, the deadlock is in large part because China is waiting for 6th of November to see how strong a hand Trump has to play.