Reading the Polls

If you watch political panels talking on TV, you see a lot of contradictions. Sunday morning I saw a panel say that polls showed that two-thirds of the Democrats favor centrist candidates and only one-third favor leftists. Then the same people said that polls showed between 80% and 90% of Democrats support the issues the leftist candidates are running on. And then they showed a poll from Iowa in which Bernie Sanders and Joe Biden, representing the two sides, were virtually tied, and the runners-up were mostly from the left. All of which adds up to nothing.