WASHINGTON, DC - AUGUST 2: Robert Rubenstein, Chief Executive Officer, Rubenstein Law, and Janice Santiago arrive at the White House August 2, 2016 in Washington, DC. President Barack Obama and first lady Michelle Obama are hosting a state dinner honoring Prime Minister Lee Hsien Loong of the Republic of Singapore. (Photo by Ron Sachs-Pool/Getty Images)

WASHINGTON, DC - AUGUST 2: Washington, DC Mayor Muriel Bowser and Jason Turner arrive at the White House August 2, 2016 in Washington, DC. President Barack Obama and first lady Michelle Obama are hosting a state dinner honoring Prime Minister Lee Hsien Loong of the Republic of Singapore. (Photo by Ron Sachs-Pool/Getty Images)

WASHINGTON, DC - AUGUST 2: Sen. Bill Nelson (D-FL) and Grace Nelson arrive at the White House August 2, 2016 in Washington, DC. President Barack Obama and first lady Michelle Obama are hosting a state dinner honoring Prime Minister Lee Hsien Loong of the Republic of Singapore. (Photo by Ron Sachs-Pool/Getty Images)

WASHINGTON, DC - AUGUST 2: Sen. Bill Nelson (D-FL) arrives at the White House August 2, 2016 in Washington, DC. President Barack Obama and first lady Michelle Obama are hosting a state dinner honoring Prime Minister Lee Hsien Loong of the Republic of Singapore. (Photo by Ron Sachs-Pool/Getty Images)

WASHINGTON, DC - AUGUST 2: Sen. Bob Casey (D-PA) and Terese Foppiano Casey arrive at the White House August 2, 2016 in Washington, DC. President Barack Obama and first lady Michelle Obama are hosting a state dinner honoring Prime Minister Lee Hsien Loong of the Republic of Singapore. (Photo by Ron Sachs-Pool/Getty Images)

WASHINGTON, DC - AUGUST 2: Douglas Oberhelman, Chairman & Chief Executive Officer, Caterpillar Inc. arrives at the White House August 2, 2016 in Washington, DC. President Barack Obama and first lady Michelle Obama are hosting a state dinner honoring Prime Minister Lee Hsien Loong of the Republic of Singapore. (Photo by Ron Sachs-Pool/Getty Images)

WASHINGTON, DC - AUGUST 2: Samantha Power, United States Ambassador to the United Nations and and Cass Sunstein arrive at the White House August 2, 2016 in Washington, DC. President Barack Obama and first lady Michelle Obama are hosting a state dinner honoring Prime Minister Lee Hsien Loong of the Republic of Singapore. (Photo by Ron Sachs-Pool/Getty Images)

WASHINGTON, DC - AUGUST 2: Laurene Powell Jobs, Founder, Emerson Collective arrives at the White House August 2, 2016 in Washington, DC. President Barack Obama and first lady Michelle Obama are hosting a state dinner honoring Prime Minister Lee Hsien Loong of the Republic of Singapore. (Photo by Ron Sachs-Pool/Getty Images)