President Dilma Rousseff has promised to re-unite Brazil after narrowly winning re-election to a second term in office with 51.6% of the vote. She said "dialogue" would be her top priority after a bitterly fought campaign against centre-right candidate Aecio Neves, who got 48.4% of the vote. The left-wing leader said she wanted to be a much better president than she has been until now. She faced mass protests last year against corruption and poor services. But Ms Rousseff, who has been in power since 2010, remains popular with poor Brazilians thanks to her government's welfare programmes.