I think you have Ron Paul confused with Rand Paul. Rand is the son and Ron is the Father. So in effect you are saying that Ron Paul is showing his own influence.
Ron Paul is an isolationist. Rand Paul is not quite the isolationist as his father but not far from him.
The story is not quite simple in Ukraine, there are definitely pro Russians and anti Russians. The election of the Pro Russian was orchestrated by Russian and there were many, many accusations of Russian interference and ballot box stuffing in the election. The Pro Russian President was making moves to have Ukraine annexed by Russia so naturally the anti-Russian citizens revolted.
Now you know the rest of the story.