U.S. Senator and Republican presidential candidate Marco Rubio speaks at a campaign rally in The Villages, Florida, U.S. on March 13, 2016. REUTERS/Carlo Allegri/File Photo

U.S. Senator Marco Rubio looks on during an official photo with Honduran Attorney General Oscar Chinchilla (not pictured) at the attorney's facilities in Tegucigalpa, Honduras, on May 31, 2016. REUTERS/Jorge Cabrera/File Photo

U.S. Senator Marco Rubio attends a news conference after a private meeting at the presidential palace in Tegucigalpa, Honduras, on June 1, 2016. REUTERS/Jorge Cabrera/File Photo

Men work on the production line at the London Taxi Company in Coventry, central England, September 11, 2013. REUTERS/Darren Staples

A combination photo shows U.S. Democratic presidential candidate Hillary Clinton (L) and Republican U.S. presidential candidate Donald Trump (R) in Los Angeles, California on May 5, 2016 and in Eugene, Oregon, U.S. on May 6, 2016 respectively. REUTERS/Lucy Nicholson (L) and Jim Urquhart/File Photos

Employees of French carmaker Renault handle a new Clio RS engine on the assembly line at Renault factory in Dieppe, France, September 1, 2015. REUTERS/Philippe Wojazer/File Photo

The logo of of Rocket Internet, a German venture capital group is pictured in this September 24, 2014 illustration photo. REUTERS/Dado Ruvic/File Photo

Hungarian Prime Minister Viktor Orban attends a news conference in Budapest, Hungary, July 26, 2016. REUTERS/Lazslo Balogh/Files