 Complete the following phrase:  In 2009, Mayorkas was appointed by President Obama as the director of U.S. Citizenship and Immigration Services USCIS. On May 20, 2009, the nomination was received by the Senate; on August 7, 2009, the nomination was confirmed by the Senate by voice vote. As USCIS director, Mayorkas led United States citizenship through management efficiencies and fiscal responsibility, and safeguarding the integrity of the immigration system. He implemented the Deferred Action for Childhood Arrivals DACA process in sixty days. He led U.S. government efforts to rescue orphaned children following the 