I think that the hard right in the US is imitating the left, which is a bad sign.
Socialism is creeping forward. There would never have been a candidate like Bernie Sanders a generation or more ago.
Several generations ago someone like him would certainly be in Congress. But not as a member: he'd be answering awkward questions to the House Committee on Unamerican Activities about his socialism. (Not saying I want to go back to that though)