I guess we can safely assume now that there will be no last minute entry by Mike Pompeo to save Republicans from Kobach.
While McConnell has stated that Pompeo is his top choice for this seat, I imagine Trump does not want this to happen, as he would lose his Secretary of State as we are approaching an election. Pompeo knows this, and probably does not want to upset Trump.
A scenario I think would work for Republicans is this: Trump endorses Roger Marshall in the primary. This would make him the favorite to win the GOP nomination, and I think Marshall would be the clear favorite in the general election as well. In this scenario, Republicans get an "electable" Republican for the general election, and Trump gets to keep his Secretary of State. Is anyone else surprised this scenario has yet to play out?