MADRID, SPAIN - JUNE 24: Mariano Rajoy, Spain's acting Prime Minister of the caretaker government adresses his Popular Party supporters during the closing rally ahead of Spanish General Elections on June 24, 2016 in Madrid, Spain. Spanish voters head back to the polls on June 26 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 caretaker government of the center-right Popular Party. (Photo by Denis Doyle/Getty Images)
