From Politicker Last night, mayoral candidate Bill de Blasio and his son, Dante, met up with President Barack Obama, who proceeded to offer some prize advice to the 16-year-old. “It was inspiring for Dante–to say the least–to meet the president and to hear his encouragement. They talked about Dante’s role on his debate team,” gushed a proud Mr. de Blasio this afternoon. “The president was very encouraging of him,” he added. “And