If you pay a lot (or even any) attention to political polls, read Nathaniel Rakich on how to read the things.
While I've got you here, let me clear something up: I said in this post that "the Rasmussen Poll, which usually favors Republicans, had Trump twelve points behind." Actually, the Rasmussen Poll has Trump five points behind. It's pollster Scott Rasmussen who has Trump twelve points behind.
Scott Rasmussen founded the Rasmussen Poll in 2003, left the company in 2013 and now does his own independent polling. The company he founded still bears his name but it ain't his poll any longer. I am hardly the first or even the thousandth person to make reference to "the Rasmussen Poll" without being aware there are two of them.