“Why or how can we be expected to negotiate anything with McConnell if Boehner can’t agree or, even worse, deliver votes.”
Huh? Boehner could only deliver 150-160 Republican votes for his “Plan B” package (of the 217 he needed). So you negotiate a compromise plan that will get 120 GOP votes and 100 or so Democratic votes, or some similar combination. That’s not an unreasonable “expectation” at this point.