MADRID, SPAIN - JUNE 26: A Unidos Podemos (United We Can) supporter holds a flag reading 'United We Can' as party members stand on stage after learning the elections results on June 26, 2016 in Madrid, Spain. Spanish voters head back to the polls after the last election in December failed to produce a government. Latest opinion polls suggest the Unidos Podemos left-wing alliance could make enough gains to come in second behind the ruling center right Popular Party. (Photo by Pablo Blazquez Dominguez/Getty Images)