As the poster above me pointed out, this isn't even a bad or biased poll. It also showed Biden up by a comparatively modest four points, which means McSally is titantically underperforming Trump. I think she's rapidly moving toward Cory Gardner levels of politically dead.
Is Kelly like well known or established in AZ? I don’t understand how their are so many Trump-Kelly voters either, he’s not particularly moderate and seems like an average Democrat.
He's known and loved. He's Gabrielle Giffords' husband, for starters, meaning that he gets a lot of residual sympathy even nine years after the assassination attempt. Beyond that, and more crucially, he's very well-liked personally and is seen as a national and state hero akin to John Glenn.