US Vice President Joe Biden called for 'national unity' when he spoke to Iraqi leaders about responding to the Isis threat.
– White House statement
...[Biden] stressed the need for national unity in responding to the Isis threat against all Iraqi communities, for coordination on security issues going forward, and for moving forward with urgency in forming a new government under the constitution.
...[Biden] discussed the steps required to roll back the terrorists’ advances, and made clear the central importance of embedding security measures within a broader strategy to enlist local communities in the fight against Isis.
The Vice President underscored that the US stands ready to enhance our support to all Iraqis in their fight against Isis.