Pure propaganda.
Polls do not seek to determine the sense of the electorate, they are now tools for influencing how people vote.
Ignore them.
Gee this poll says different: http://www.breitbart.com/big-government/2017/11/11/exclusive-alabama-polls-judge-roy-moore-maintains-double-digit-lead-over-democrat-doug-jones-before-after-wapo-smear/