Transcript for Trump to rally Republican lawmakers on tax reform
All right. Let's bring in Cecilia Vega. Senior congressional correspondent Mary Bruce. We heard from just about everyone now except president trump. Reporter: He does not want to go there. I asked him point blank yesterday here at the white house do you believe Roy Moore's accusers? Do you think he should step aside? He looked at me. He walked away. He did not answer this question. A bit of a caveat from white house aides talking about this. They say if, if this conduct is true Roy Moore should step aside. Remember, president trump did not endorse Roy Moore in this race. He also has had his own issues with women who have accused him of sexual misconduct. He has strongly denied that, though so I am not surprised this is a topic the president does not want to talk about, it's hands down the elephant in this room here at this white house. He's got to address this at some point? We'll see how long he can handle that. Crucial for them to pass the tax bill as well. That seat could be crucial. I want to bring in Mary Bruce for for because, Mary, what we're also seeing the first senate Republicans saying they're a no on the tax bill. Reporter: Yeah, this bill could be in real trouble here. Senate Republicans can only afford to lose two votes if he want to get it down and one Republican says he cannot support it. Ron Johnson of Wisconsin says the bill favors big corporations over small businesses. And others like Susan Collins of Maine have serious misgivings about the plan to include a repeal of the Obamacare mandate concerned about what that could mean for Americans' premiums. Ron Johnson says he wants to get to a yes, but, George, it's simply unclear if and how they'll address all these concern. When you change one part it could cause problems somewhere else. Meantime, they are fairly confident that the house@ will pass their version of the tax bill. Reporter: Yeah, the house is expected to passion their version today bringing them one step closer to this legislative win that they're also desperately hoping for up here but, again, the issue is how are they going to address these concerns and they still need to reconcile the significant differences here between the house version and the senate version and, George, they just don't have a lot of time left if Republicans are hoping to wrap it up by the end of the year. Cecilia, the president pushing hard he will go up to the house today. The question is what exact role will he play as these negotiations continue? Reporter: Well, this is basically a prevote rally to push this across the finish line. The white house wants his appearance to look like he is heavily involved accused of not being involved in health care. This is a win that this white house desperately needs. Cecilia Vega and Mary Bruce, thanks very much.
This transcript has been automatically generated and may not be 100% accurate.