I'm not sure you're right about that but in any case Sabato has a pretty good reputation for accuracy. His predictions are very accurate. I really wish that Michael Barone would do an equivalent evaluation of the races but if he has I haven't found it.
And note that we are carrying 4 different "experts" at this time. If there is a Dem bias in any of them it will stand out.
I used to think Sabato was OK until something he said (I wish I could remember what it was) just set me off a couple of years ago. I think he was pushing Obama over Hillary and it wasn’t a prediction so much as it was trying to influence the vote. After that, I haven’t trusted him. Maybe you’re right, but I take everything he says with a grain of salt.
Oh, I forgot to say: You’ve done a very good job here. Thanks!