We get called no less than 10 times a day some days for either candidates or polling.....we never answer the phone so we never participate in the polls. Thing is, most folks I know are the same way. They either don’t answer these calls or they don’t have a home phone any longer. Just not sure how reliable these polls can be any longer.
They were reliable enough in New Hampshire even though Trump outperformed the polls by 4 points.
They were pretty reliable for the NH results, except for under-polling Trump's support by a few points.