Lawmakers want answers over Trump officials' use of Signal for communications

Natalie Brand reports on lawmakers' questions about top Trump administration officials' use of Signal for communications. Website: http://kpix.com/ YouTube: http://www.youtube.com/CBSSanFrancisco Facebook: https://www.facebook.com/CBSSanFrancisco Instagram: https://www.instagram.com/kpixtv/ Twitter: https://twitter.com/KPIXtv