Transcript for Battle for Control of the Republican Party Continues
Next, to the race for the white house tonight, and major developments there. Did Donald Trump flip-flop on taxes? And the battle for the republican party now. Trump saying he's willing to go it alone if some gop leaders do not rally to support him. Tonight, house speaker Paul Ryan saying he'll step aside as the party's convention chief, this summer, if trump wants him to. A big meeting between trump and Ryan planned for Thursday. Meanwhile tonight, Hillary Clinton pushing forward with the general election. Today, trying to wreech out to swing voters who have gone either way in previous years. In this case, today, suburban women. ABC's Tom llamas on the campaign trail for us tonight. Reporter: Tonight, house speaker Paul Ryan says he's willing to step aside as chairman of the republican convention. Ryan saying it's Donald Trump's show, Donald Trump's rules. He's the nominee. I'll do whatever he wants with respect to the convention. Reporter: Ryan now also seeming to soften his tone after declaring he wasn't ready to endorse trump. I never said never. I just said at this point. I wish I had more time to get to know him before this happened. I didn't, but we just didn't. Reporter: But trump telling George, his focus is not on the gop, but on winning. Does the party have to be together? Does it have to be unified? I'm very different than everybody else, perhaps, that's ever run for office. I actually don't think so. Reporter: Trump now further alarming republican leaders with what sounds like a flip-flop on taxes. After promising to lower taxes on everyone, including the rich, trump now telling George this. Bottom line, do you want taxes on the wealthy to go up or down? They will go up a little bit. And they may go up, you know. But they're going down in your plan. No, no. In my plan they're going down, but by the time it's negotiated, they'll go up. Reporter: Today, trump trying to clarify, saying wealthy Americans will get a tax cut, but just how much is open to negotiation? They're still going to pay less than they pay now. I'm not talking about increasing from this point. I'm talking about increasing from my tax proposal. Reporter: With some complaining trump is sounding more like a democrat, "Snl's" church lady letting loose. You know, it's interesting times in America, right? And now we've landed on the exciting presidential match-up between a godless liberal democrat and Hillary Clinton. Reporter: Clinton now trying to build a solid lead among those key swing voters, meeting with suburban moms today in Virginia. Oh, my gosh, thank you! Reporter: She's trying to ignore trump's attacks tying her to her husband's sex scandals. And Hillary was an enabler and she treated these women horribly. Just remember this and some of those women were destroyed, not by him, but by the way that Hillary Clinton treated them after everything went down. Reporter: It didn't stop there. All of the men, we're petrified to speak to women anymore. We may raise our voice. You know what? The women get it better than we do folks, you know what? They get it better than we do. Reporter: Clinton today refusing to respond. And I have been very clear that a lot of his -- a lot of today. Tom llamas with us live tonight and Tom, Donald Trump now searching for a rub running mate, of course, but Marco Rubio making it clear he's not interested? Reporter: David, recently, trump spoke in glowing terms about senator Rubio, but today, Rubio said he doesn't even want to be considered. That he still has reservations about trump's campaign and many concerns about his policipolicies. Tom llamas on the campaign trail again tonight. As always, thanks, Tom.
This transcript has been automatically generated and may not be 100% accurate.