The GOP party line is now that any attempt to oppose Trump in any way will spell electoral ruin for a Democratic senator. Thus Trump & Sen. Cronyn’s yelping about the defeat Sen. Tester will allegedly be delivered because he revealed how flagrantly ill-qualified as well as ethically dubious the latest Trump lemon was.
Note to Sen. Tester: just explain to the population of Montana how grotesquely unfit and thereby potentially or currently catastrophic Trump’s nominees are.