US Vice President Joe Biden (L) pose with Turkish President Rcep Tayyip Erdogan at Beylerbeyi Palace on November 22, 2014 in Istanbul. US Vice President Joe Biden on Saturday meets Turkish President Recep Tayyip Erdogan aiming to ease strains over the crisis in Syria and persuade Turkey to step up its support for the coalition against Islamic State (IS) jihadists. AFP PHOTO/BULENT KILIC (Photo by BULENT KILIC / AFP)
Joe Biden (left), the then US Vice President with Turkish President Recep Tayyip Erdogan at Beylerbeyi Palace on November 22, 2014 in Istanbul. AFP

What happens when Biden and Erdogan meet next week?