
Joe Biden spent the first month of his presidency making routine calls to world leaders. For Turkish President Recep Tayyip Erdogan, the call never came.
The quiet phone line became a major news story in Ankara, despite—or perhaps because of—years of perceived slights between the NATO allies, from jostling over Syria to Turkey’s purchase of a Russian air defense system. But interviews with over a dozen officials, lawmakers, and other experts make clear that the U.S. president’s radio silence is indicative of a tougher American tone toward Turkey: Ankara will keep getting the cold shoulder unless it cleans up its act—and fast.