By Star Parker Polls are not like a weather forecast. We can't do anything about the weather. If the prediction is rain, the only thing to do is get ready for it. Polls measure public sentiment. But that sentiment can be influenced. Current polling seems to justify handwringing on the part of Republicans regarding the outlook for November. RealClear Polling's latest general congressional poll shows Democrats leading Republicans 47.9% to 40.3%. However, again, it's not the weather. We've got months.