Trump Postpones VP Announcement News Conference

GOP nominee's decision based on violence in Nice, France

Trump has selected Mike Pence as his running mate. (Al Drago/CQ Roll Call)

Presumptive Republican presidential nominee Donald Trump postponed his scheduled news conference on Friday to announce his running mate.   

Trump tweeted that the "horrible attack in Nice, France," prompted him to hold off on the event that had been scheduled for 11 a.m. in New York.  

Roll Call reported on Thursday that Trump has selected Indiana Gov. Mike Pence to round out the GOP ticket.