I will say this, there is a very sizable segment of the American population that pollster NEVER poll and/or they don't understand them. I'm Caadian and I've really grown to understand this, myself a victim of the homogenuous media ideology coming from Toronto, Ottawa and Vancouver who essentially mirror NY and Cali.
I will always assume, based on the locale of the pollster who raise money, earn a living and have offices in particular areas that most polls are skewed left, in particular when speaking of Trump.
Just look at his rallies. You can say what you want, but these people are hardcore, committed, many 4th, 5th generation Americans, many from military families. When they feel they have a guy who will defend their Constitution, religion and American Values vs. China or some alt-left socialist, only God himself can stop them from voting.
Yeah some guy drinking his latte on his cold, hard designer bench in his upscale condo might receive a call and use it as an outlet to openly talk about how much he dislikes the president, but these same Trump supporters might say "no comment", "undecided", "I'm not voting" or even "I support the Democratic candidate" when they know damn well they are going out to vote GOP.
Tuesday will tell, but put it this way, if it was a Red Wave, would anyone be surprised after how inaccurate the 2016 elections were? Look at Fox News ratings they are through the roof, more viewers than CNN and MSNBC combined. Is this not telling?
How about the push to silence Conservatives on social media? To avoid any anti-liberal views in the MSM. Is this not out of fear of a Conservative wave?
What about the support from Black and Hispanics? What about Asians, a population so many just overlook, I bet many Koreans and traditional Asian and/or Christians from this group are in Trumps corner.
Again, I don't know how the vote goes, but I bet America is FAR more conservative/libertarian than the media projects it or that which any poll might reveal.