You are wrong.
Of the 13 final national polls conducted the week before the U.S. election only one had Trump ahead, and 12 put Democratic nominee Hillary Clinton on top, according to The Hill.
Trump likes to point out that this shows how wrong the polling industry is, and use his usual "fake"  accusations.
But polls only measure the popular vote.
Hillary got 2.86-million more votes than Trump.
She won the national popular vote by 2.1 points. The average of the 13 final national polls had Clinton ahead by 3.1 points, which was only a point off the actual result. Not bad.
Trump is a modern day Svengali who can make people believe anything, although the facts are in front of them.
You seem to have fallen for one of his ruses.
He has many more.