It's been my observation that political parties believe in whatever is convenient for them to believe in at any given time. So we shouldn't necessarily be surprised by lack of GOP opposition.

In fairness, I guess people are like that as well. Maybe that sort of duplicity is simply endemic to being human?

> Just hate the fact that no Republican opposes him anymore.

Many do, few have the guts to admit it publicly. Politics is still a business after all.

As an example, The Lincoln Project is made by past and current republicans strongly opposing Trump. https://lincolnproject.us/