AlQa'dah 14, 1432, Oct 12, 2011, SPA -- US President Barack Obama has called Saudi Ambassador to the United States of America Adel bin Ahmed Al-Jubeir to express solidarity over an alleged plot to assassinate him. "President Obama underscored that the United States believes this plot to be a flagrant breach of US and international law. He also underscored the close partnership between the United States and Saudi Arabia," the White House said in a statement.