While the Republicon tax farce did pass the Senate, it is not law, and far from being implemented. The Senate is supposed to be the defenders of the Constitution. The House is supposed to represent the People. So there is a Senate tax proposal, which is utter lunacy and has nothing to do with reality, because they are not beholden to people. And then there is the House of Representatives tax proposal, which has led to all of the ruckus we have seen recently at legislator's Town Hall meetings. These guys are responsible for their constituency, who are also their neighbors, and accost them at the grocery store, and while mowing the lawn. The next step is for the Senate and the House to get together and try to find common ground between the two - very different - proposals. This is why stupid shit like reframing what "abortion" is, has made it into the Senate's bill: They know it will be removed during negotiation, but they get to say they were "hard on abortion rights" by pasting it into an addendum in the tax bill. It's mostly theater, right now. Once the two different proposals are merged into one, we will have a much better idea of what specific parts we need to fight, and who we need to pester to get them eliminated, or voted against.
Unless Paul Ryan, America's chief budget hawk, decided to just send the Senate Bill to the floor. It doesn't need conference in that case. Probably unlikely but so many things that were 'probably unlikely' have happened recently that I'm not making hard predictions.