SPD party leader and German Vice Chancellor, Economy and Energy Minister Sigmar Gabriel holds a press conference after a convention of the social democratic party at CongressPark in Wolfsburg, central Germany, on September 19, 2016. Delegates of the SPD came together to hammer out their position concerning the Comprehensive Economic and Trade Agreement (CETA) between Canada and the European Union. CETA is due to be signed in October 2016. / AFP PHOTO / dpa / Julian Stratenschulte / Germany OUTJULIAN STRATENSCHULTE/AFP/Getty Images

SPD party leader and German Vice Chancellor, Economy and Energy Minister Sigmar Gabriel holds a press conference after a convention of the social democratic party at CongressPark in Wolfsburg, central Germany, on September 19, 2016. Delegates of the SPD came together to hammer out their position concerning the Comprehensive Economic and Trade Agreement (CETA) between Canada and the European Union. CETA is due to be signed in October 2016. / AFP PHOTO / dpa / Julian Stratenschulte / Germany OUTJULIAN STRATENSCHULTE/AFP/Getty Images

SPD party leader and German Vice Chancellor, Economy and Energy Minister Sigmar Gabriel arrives at a press conference after a convention of the social democratic party at CongressPark in Wolfsburg, central Germany, on September 19, 2016. Delegates of the SPD came together to hammer out their position concerning the Comprehensive Economic and Trade Agreement (CETA) between Canada and the European Union. CETA is due to be signed in October 2016. / AFP PHOTO / dpa / Julian Stratenschulte / Germany OUTJULIAN STRATENSCHULTE/AFP/Getty Images

NEW YORK, NY - SEPTEMBER 19: Special Representative for Commercial and Business Affairs, U.S. Department of State Ziad Haider speaks at the 2016 Concordia Summit - Day 1 at Grand Hyatt New York on September 19, 2016 in New York City. (Photo by Paul Morigi/Getty Images for Concordia Summit)

NEW YORK, NY - SEPTEMBER 19: Special Representative for Commercial and Business Affairs, U.S. Department of State Ziad Haider speaks at the 2016 Concordia Summit - Day 1 at Grand Hyatt New York on September 19, 2016 in New York City. (Photo by Paul Morigi/Getty Images for Concordia Summit)

Visitors look at electric cars on the first day of the "Inter Solar Connecting Solar Business" exhibition, the annual Intersolar Middle East forum for professionals in the solar power industry, in Dubai on September 19, 2016. A fleet of electric vehicles, including the Tesla model S and X will take part in an eletric vehicle road trip (EVRT) on the UAE roads. The fleet of vehicles will drive a pre-planned route of over 700km, making purposeful stops in each of the 7 Emirates. / AFP PHOTO / KARIM SAHIBKARIM SAHIB/AFP/Getty Images

Visitors look at electric cars on the first day of the "Inter Solar Connecting Solar Business" exhibition, the annual Intersolar Middle East forum for professionals in the solar power industry, in Dubai on September 19, 2016. A fleet of electric vehicles, including the Tesla model S and X will take part in an eletric vehicle road trip (EVRT) on the UAE roads. The fleet of vehicles will drive a pre-planned route of over 700km, making purposeful stops in each of the 7 Emirates. / AFP PHOTO / KARIM SAHIBKARIM SAHIB/AFP/Getty Images

Visitors look at electric cars on the first day of the "Inter Solar Connecting Solar Business" exhibition, the annual Intersolar Middle East forum for professionals in the solar power industry, in Dubai on September 19, 2016. A fleet of electric vehicles, including the Tesla model S and X will take part in an eletric vehicle road trip (EVRT) on the UAE roads. The fleet of vehicles will drive a pre-planned route of over 700km, making purposeful stops in each of the 7 Emirates. / AFP PHOTO / KARIM SAHIBKARIM SAHIB/AFP/Getty Images