This is not new. Every time a Democrat has been elected president, a far-right movement has attempted to unseat him. Read some history on the matter and you will see that groups like the John Birch Society and the Tea Party have arisen after the election of a Democrat, for about the past hundred years.
Someone once said, "Show me a good loser, and I'll show you a loser." If I may paraphrase, "Show me a Republican, and I'll show you a poor loser."