"Do not underestimate the RATs to make a small "statement" on this vote. Expect something like 70-25 with 5 abstains."
I suspect the opposite - as I said earlier, I think all but the very dumbest of them will support him, in order to illustrate their supposed "fairness" and "non-bias" - which they can bleat about when they attempt to disembowel the next candidate.
If it is an overwhelming vote this time, then the next candidate had better be really to the right of Roberts, or else how could the RATs vote him/her down?