Polls favorable to Donald Trump may be overestimating his support, state polls suggest
One point that this article fails to mention is that the LA Times poll takes a cross-country read every day from 3,000 people, making it more accurate than most other national polls, that are only one-third the sample size.
And that same LA Times poll mentions that Clinton is ahead by one point, but failed to be honest by reporting a lead for just one day for Clinton in over 8 weeks in the exact same poll.