@Foxfyre,
Thank you for the comment, Foxy. I do try.
I must admit that I came to the "Rasmussen tends to lean a bit to the right" conclusion based on the incredibly in-depth contributions by Nimh during the primaries and general election. His pretty charts and graphs were astounding. He is still around but is not as active as he was.
I read what he wrote about polls and there evidently are subtle nuances in polling (time of day, phrasing of questions etc, etc) that can lead to conclusions about a pollster's "bias." Bias is too strong a word, but I can't think of a word with a less sinister meaning. Perhaps Nimh could give a us a lesson on the subject.