Plus it's a PPP national poll and I'm somewhat hesitant to put too much faith in them.
Wasn't PPP the most accurate pollster in 2012?
Read this thread:
https://uselectionatlas.org/FORUM/index.php?topic=179353.0and this:
https://uselectionatlas.org/FORUM/index.php?topic=202694.0on the controversy surrounding PPP's methodological shenanigans, and its results hugging the polling average too closely when the election approaches. As the election approaches, PPP systematically hugs the polling average more closely than it should, given the margin of error. This suggests that as we get close to the election, PPP starts taking "cues" from other pollsters about what its #s should be, and somehow adjusts accordingly.