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Representatives of Istanbul, Madrid and Tokyo are in the running to host the 2020 Summer Olympics.
Representatives of Istanbul, Madrid and Tokyo are in the running to host the 2020 Summer Olympics.

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    Top 3 cities vying for 2020 Olympics

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Top 3 cities vying for 2020 Olympics

CNN reporters take a look at the three cities vying to host the 2020 Olympic Games.

Top 3 cities vying for 2020 Olympics

CNN reporters take a look at the three cities vying to host the 2020 Olympic Games.