“...This author is out of sorts because the incumbents are leading, so leave them alone, you only make them vulnerable to their democrat opponents.”
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Not true. Have you checked out the polls on Mitch McConnell and the Kentucky Senate race this year. The self-centered and self-deluded McConnell could well cost the Republicans a Senate seat this year if he prevails in the primary.
I assumed he meant the race with the primary opponents, but you are correct about McConnell and Grimes. I think she’s now leading...at a minimum she’s drawn even with McConnell.