I've seen that LA Times poll, and I think it's an outlier. No other poll puts Trump 6 points ahead of Hillary.
The LA Times poll may have oversampled Trump supporters, but it can still provide useful insight. If I remember correctly, it is a longitudinal poll, so it repeatedly polls the same group over time. It might be off by a few points, but does a better job of showing how the race is evolving over time and who has momentum.