The poll from the Catholic University, conducted for Público and RTP, confirms that there are three standout candidates in the race for the two places in the presidential second round. The downward trend for both Marques Mendes and Gouveia e Melo leaves these two candidates, in the final week of the campaign, nine percentage points behind second place. Paulo Baldaia speaks with Expresso's deputy editor David Dinis, on the Expresso da Manhã programme, to try to understand how we got here.