For months Enrique Pena Nieto has enjoyed a commanding lead in the polls. He has benefited from widespread discontent over the way President Calderon's PAN Party has governed Mexico. Their candidate Josefina Vazquez Mota is floundering in the polls. But thousands took to the streets on Sunday in protests against Pena Nieto organised by the student-led 'I am 132' movement. They oppose a return to power of his Institutional Revolutionary Party (PRI) whose 71 year rule of the country up until 2000 was marred by corruption and authoritarianism.