President of Iraqi Kurdistan Region Massoud Barzani on Saturday received a telephone call from US Vice President Joe Biden. The two sides discussed the developments in Iraq and the ongoing negotiations between the federal and the Regional governments, said Chief of Staff to the President of Iraqi Kurdistan Region, Fuad Hussein.He pointed out the two also discussed visit, which was supposed to be made by Barzani yesterday to Washington, noting that the two sides stressed the need for the visit to take place at an appropriate time later.