Shipping containers and cranes are seen at a port holding yard in Melbourne in this June 2, 2010 file photo. REUTERS/Mick Tsikas/Files

U.S. President Barack Obama addresses the Congressional Black Caucus Foundation's 46th annual Legislative Conference Phoenix Awards Dinner in Washington, September 17, 2016. REUTERS/Yuri Gripas

Actress Sophie Turner from the HBO series "Game of Thrones" arrives at the 68th Primetime Emmy Awards in Los Angeles, California U.S., September 18, 2016. REUTERS/Lucy Nicholson

Actress Tracee Ellis Ross, of ABC's "Black-ish," and co-star Anthony Anderson arrive at the 68th Primetime Emmy Awards in Los Angeles, California, U.S., September 18, 2016. REUTERS/Lucy Nicholson

Actress America Ferrera, of NBC's "Superstore," and husband Ryan Piers Williams arrive at the 68th Primetime Emmy Awards in Los Angeles, California U.S., September 18, 2016. REUTERS/Lucy Nicholson

Model Emily Ratajkowski arrives at the 68th Primetime Emmy Awards in Los Angeles, California, U.S., September 18, 2016. REUTERS/Lucy Nicholson

Angela Bassett, of FX Network's "American Horror Story," arrives at the 68th Primetime Emmy Awards in Los Angeles, California, U.S., September 18, 2016. REUTERS/Lucy Nicholson

Actress Sarah Hyland from the ABC series "Modern Family" arrives at the 68th Primetime Emmy Awards in Los Angeles, California U.S., September 18, 2016. REUTERS/Lucy Nicholson