Detailed text transcripts for TV channel - CNN - 20190814:05:28:00
>> reporter: elizabeth warren is making a big summer splash in iowa. but beyond the teaming crowds, her campaign is building something that's even more impressive to many democrats here. a muscular ground organization with a person to person network growing by the day in backyards like this. >> and it's great to be here at someone's home. i want to say a very special thank you to drew and carol. where are you? there you are. >> reporter: drew and carol kell sew have been following but not until one of warren's organizers reached out and asked if they would host the massachusetts senator. >> it...