Campaign apps are gathering vast amounts of voter data

Presidential campaign apps are on the rise, and both Trump and Biden's campaigns use them. Downloaded by organizers, volunteers and even just fervent supporters, users give these apps lots of valuable information, like access to their contact list, GPS and Bluetooth data. Campaigns can then use this data to build out voter profiles, and better target people with political advertising. But the privacy implications, as well as the potential for voter manipulation, has some deeply concerned.