In an opinion piece in The Washington Post, Biden says Iraq is making progress in forming a new government. But he says sectarian divisions are fueling extremist movements like the Islamic State group.
Biden says federalism is emerging as one approach to Iraq's future. He's alluding to a plan he proposed in 2006 that would see Iraq divided into three semi-independent regions for Shiites, Sunnis and Kurds.
Biden says such a plan would keep Iraq united, protect local populations and ensure oil revenues are shared fairly, while squeezing the Islamic State group.
He says the US would offer assistance. AP