Are Election Polls Reliable?

A poll is nothing more than an attempt to predict an outcome based on what a relatively small sample of people say they are going to do. To suggest that they could be off by more than the statistical margin of error is just wishful thinking. Is that true? No. The polling industry is in the problems, because populations are simply getting sick of answering multiple times questions from pollsters. That’s why. So, does that mean that polls are or are not reliable?