 Harris was confirmed by the U.S. Senate to serve as Ambassador to South Korea by voice vote on June 28, 2018.On June 29, 2018, Harris was officially sworn in as the new United States Ambassador to South Korea.One of the major issues Harris had to take forward was increasing South Korea's share of the costs for joint security responsibilities, which President Trump wished to see increased from from $830 million to about $5 billion annually.