I'm skeptical that Paul is in any danger, but this is Vox Populi here. It's the same poll that found Conway and Bevin tied, while all other polls gave Conway a slight lead. It's just one poll, but it's not a good one for Paul, who should be doing much better.
https://uselectionatlas.org/FORUM/index.php?topic=201587.0
Just because it's a Republican polling firm, that doesn't make it junk. Not to mention that those numbers are quite plausible since other polls have shown Paul up 10-12 as well.
Even if this particular poll happens to be accurate (which is a stretch, since, as I pointed out, its results for the gubernatorial race were not in line with other polls), it's still a bad poll for Paul. He should be up by more than 10 against an opponent who hasn't declared yet.