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Washington, D.C. On Tuesday, August 2, on the South Lawn of the White House, l-r, Mrs. Lee Hsien Loong, First Lady Michelle Obama, Prime Minister Lee Hsien Loong, and President Barack Obama, wave from the South Portico at the end of the State Arrival ceremony. (Photo by Cheriss May/NurPhoto via Getty Images)

Washington, D.C.  On Tuesday, August 2, on the South Lawn of the White House, l-r, Mrs. Lee Hsien Loong, First Lady Michelle Obama, Prime Minister Lee Hsien Loong, and President Barack Obama, wave from the South Portico at the end of the State Arrival ceremony. (Photo by Cheriss May/NurPhoto via Getty Images)