What you are calling outlier polls, as you put it, are the ones that had it right in 2016 and they are the ones that have it right this time, too.
The consensus polls for Collins are the polls which I would never “rely” on (because they have been consistently wrong) like
Quinnipiac -12;
NYT -5
....just like they were the consensus polls for Trump in 2016 and consistently wrong.
And they are the consensus polls for Trump this time, too.
Quinnipiac -10
NYT -9
As I said, polling is broken. Trump is not going to lose by 9-12 despite the fact that almost all the consensus polls say he will; and Collins is not going to lose by 5-12.
Just look at the election of Angus King and the nomination of Sara Gideon. Do you see this as a sign that Maine is moving away from Collins and in the direction of placing Maine state legislators into federal positions?
-PJ