Here's the problem with your delusional thinking.
The polls on Susan Collins showed she was in a dead heat with the democrat. The results? SHE WON BY 9 POINTS.
The polls on Lindsey Graham showed he was in a dead heat with the democrat. HE WON BY 13 POINTS.
You can't blame it on "Trump voters lie to pollsters." There are lots more examples like this. IT AIN'T JUST TRUMP THEY DO IT TO.