Most of the conservatives I know don't agree with him on Russia. But certainly some do.
I also think this is a rift that isn't going to be fixed very easily. I personally would not vote for any Republican who is on Russia's side on this, and I would guess that many of those on Russia's side feel the SE about anyone who supported Ukraine.
And that's not a rift "created" by anyone else. This whole situation has simply exposed a pre-existing rift, not created one.
This is not ‘Rusdia’s side’. Where do you get this idea? Not once has he said that. On the contrary. He has explained repeatedly.