One if the oldest trick they learned. These votes are predetermined by leadership, quietly go along to get their agenda advanced then when the vote won't kill their agenda let the guy from conservative state vote no, just for the campaign byte value.
Just like Hutchison (AD-TX) did to give us Obamacare. Needed that Debate (doesn’t that seem like that was valuable and memorable in the lens of history?) and to get home for Christmas and her ambition to run for Guv.