That’s addressed in those articles, They were able to use landlines to known demographics. In 2016 we have changed a lot tech-wise, cutting the cord etc, and a lot of their demographic no longer talks to them. They Missed badly since then.
Let’s hope....I never want to sit through an election like 2012, with the skewed poll nonsense that was just made-up nonsense. Remember, even the RNC was running that ORCA vote system that blew up in their face.