President Obama arrived in Ethiopia on Sunday to talk about regional terrorism and make a final push to get South Sudan to accept an Africa-negotiated agreement to end the violence and atrocities there.
But senior aides to the president say they aren't optimistic that there will be a breakthrough at the meeting set for Monday or before an Aug. 17 deadline set by the negotiators.
The president plans to meet with African leaders for about 90 minutes in Addis Ababa on Monday to talk mainly about South Sudan.