One thing that strikes me as odd is this - they lost last time essentially because McCain was upset with the lack of bipartisanship and decided to f**k them. So their solution this time is to publicly give the middle finger to bipartisanship to put pressure on people? Like, it doesn't seem like the ideal design for that end.
I almost wonder whether this isn't just for show with Senate Republicans feeling like they needed to give the appearance of an Obamacare repeal fight right before the deadline arrived.