US shootings fire up divisions

While Trump cites violence to attack rivals, some point to overall lower crime

The Labor Day holiday weekend saw a major rise in gun violence in several big US cities compared with the same period a year ago.

In August, New York had 242 shootings, more than twice the number for that month last year. The steep increase had pushed the city past 1,000 shootings by Labor Day.

Chicago has also seen an increase in shootings, continuing a trend for both cities that had been building since the start of the summer.