also echoed by president trump in a tweet yesterday, urging republican senators to step up to the plate, but parts of the senate health care bill could violate budget rules, according to a senate parliamentarian, and senator mccain's recent cancer diagnosis means the gop is down a vote they cannot afford to lose. the latest developments raising questions about where the senate health care bill is headed. let's bring in sarah westwood, washington correspondent, and dan dimon, health care reporter for politico. dan, what are they going to vote on, if they do vote on something this week? >> richard, they don't know what they are going to vote on, and whatever bill they end up picking doesn't have the votes. the republican health reform effort in the senate is kind of a shambling zombie at this point moving from week to week, but mcconnell, majority leader mcconnell, wants to hold the vote, because he thinks that a failure will be enough to get conservative groups to pressure those holdout senators and bring them back to the table. i'm not sure that's going to happen, but that feels like the