Sens. Bob Corker of Tennessee and Jeff Flake of Arizona have said over and over that (unlike their two-faced leaders) they actually do care about the deficit, even where this tax-cut bill is concerned. If they don’t vote against it, they will be enrolling in the Ryan-McConnell Deficit Prevarication Association. Sen. Susan Collins of Maine is as close as there is to a genuine moderate in the Senate GOP. Voting for this utterly immoderate scheme would mean tossing her moderate credentials into a bonfire.

But the man whose voice most needs to be heard is Arizona Sen. John McCain. Over the past few months, he really has been the conscience of the Senate. This summer, he gave a remarkable speech during the Obamacare debate in which he chided the party’s leadership for “asking us to swallow our doubts and force [the bill] past a unified opposition.”