French President Francois Hollande (L) and German Chancellor Angela Merkel deliver a joint statement after the European Union Summit of 27 Heads of State or Government in Bratislava, Slovakia on September 16, 2016. The 27 leaders -- minus British Prime Minister Theresa May -- gathered at Bratislava's towering castle overlooking the River Danube, determined to respond to the challenges of mass migration, security, globalisation and a stuttering economy. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

French President Francois Hollande delivers a joint statement with the German Chancellor after the European Union Summit of 27 Heads of State or Government in Bratislava, Slovakia on September 16, 2016. The 27 leaders -- minus British Prime Minister Theresa May -- gathered at Bratislava's towering castle overlooking the River Danube, determined to respond to the challenges of mass migration, security, globalisation and a stuttering economy. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

French President Francois Hollande delivers a joint statement with the German Chancellor after the European Union Summit of 27 Heads of State or Government in Bratislava, Slovakia on September 16, 2016. The 27 leaders -- minus British Prime Minister Theresa May -- gathered at Bratislava's towering castle overlooking the River Danube, determined to respond to the challenges of mass migration, security, globalisation and a stuttering economy. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

French President Francois Hollande (L) and German Chancellor Angela Merkel deliver a joint statement after the European Union Summit of 27 Heads of State or Government in Bratislava, Slovakia on September 16, 2016. The 27 leaders -- minus British Prime Minister Theresa May -- gathered at Bratislava's towering castle overlooking the River Danube, determined to respond to the challenges of mass migration, security, globalisation and a stuttering economy. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

French President Francois Hollande delivers a joint statement with the German Chancellor after the European Union Summit of 27 Heads of State or Government in Bratislava, Slovakia on September 16, 2016. The 27 leaders -- minus British Prime Minister Theresa May -- gathered at Bratislava's towering castle overlooking the River Danube, determined to respond to the challenges of mass migration, security, globalisation and a stuttering economy. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

French President Francois Hollande (L) and German Chancellor Angela Merkel deliver a joint statement after the European Union Summit of 27 Heads of State or Government in Bratislava, Slovakia on September 16, 2016. The 27 leaders -- minus British Prime Minister Theresa May -- gathered at Bratislava's towering castle overlooking the River Danube, determined to respond to the challenges of mass migration, security, globalisation and a stuttering economy. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

French President Francois Hollande (L) and German Chancellor Angela Merkel deliver a joint statement after the European Union Summit of 27 Heads of State or Government in Bratislava, Slovakia on September 16, 2016. The 27 leaders -- minus British Prime Minister Theresa May -- gathered at Bratislava's towering castle overlooking the River Danube, determined to respond to the challenges of mass migration, security, globalisation and a stuttering economy. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

JOLIET, IL - SEPTEMBER 16: Hebru Brantley, artist of the Turtle-themed trophy, and Greg Cipes, voice of Michelangelo in Nickelodeon's Teenage Mutant Ninja Turtles pose with Joey Gase, driver of the #32 TMNT Rocksteady Chevrolet, David Ragan, driver of the #23 Jewel Osco/TMNT Leonardo Toyota, Michael McDowell, driver of the #95 Thrivent Financial/TMNT Donatello Chevrolet, Darrell Wallace Jr, driver of the #6 TMNT Shredder Ford, Regan Smith, driver of the #7 Nikko RC/TMNT Raphael Chevrolet, Danica Patrick, driver of the #10 April O'Neil/Nature's Bakery/TMNT Chevrolet, Daniel Suarez, driver of the #19 ARRIS/TMNT Michelangelo Toyota, and John H Nemechek, driver of the #8 #TeamTurtle/#TeamFoot Chevrolet, prior to practice for the NASCAR Sprint Cup Series Teenage Mutant Ninja Turtles 400 at Chicagoland Speedway on September 16, 2016 in Joliet, Illinois. (Photo by Kena Krutsinger/Getty Images)