An election campaign banner depicting presidency candidate Rodolfo Piza of the Social Christian Unity Party (PUSC) is seen on January 3, 2018 in San Jose ahead of the upcoming February 4 presidential elections. Costa Ricans will go to the polls on February 4 to elect their next president, in a climate of uncertainty in which nearly half of the population remains undecided and the candidate with further support in the polls is far from the minimum 40% needed to win in the first round. / AFP PHOTO / Ezequiel BECERRA