New York Mayor Bill de Blasio drops 2020 presidential bid

In this July 4, 2019, file photo, Democratic presidential candidate New York Mayor Bill de Blasio walks in the Independence Fourth of July parade in Independence, Iowa. de Blasio said Friday, Sept. 20 that he is ending his campaign for the Democratic presidential nomination. (AP Photo/Charlie Neibergall, File)

NEW YORK — New York City Mayor Bill de Blasio ended his campaign for the 2020 Democratic presidential nomination on Friday after struggling to gain traction in a sprawling field of candidates.