It was an Axios/Survey Monkey showing her up 14 and, conveniently, it was excluded from the average of polls at RCP.
The conservative news site Tennessee Star reported on that poll, but here is what they said about it:
“The methodology used by Axios-Survey Monkey differs from that of standard polling. First, it was conducted over a longer period of time, covering three weeks beginning June 11 and ending July 2. Second, instead of using live or automated phone calls to land line and cell phones, the Axios/Survey Monkey Poll is primarily online.”