After Charlottesville-and Trump's statement on Tuesday--all eyes turned to Steve Bannon-& many consider Bannon responsible for the ALT right extention to the Republican party.

"BANNON'S BREITBART distinguished itself from the rest of the conservative media in two significant ways this cycle. The first was becoming a mouthpiece for Trump. The second was through their embrace of the ALT-RIGHT. Bannon’s Breitbart realized that there was a large online community that naturally gravitated to Trump, a mix of people who saw themselves as far too radical to be accepted by polite society. Among them, conservative suspicions of diversity, inclusion, feminism, and political correctness had metastasized into something much darker. This was the alt-right, a collection of racists, pick-up artists, men’s rights activists, and other noxious trolls of the internet."
https://www.cbsnews.com/news/steve-bannon-and-the-alt-right-a-primer/

No one can control Trump, so this won't help.