Until mcconnelle removes him.
McConnell would be thrilled if these Obama crooks were brought to justice by Rand Paul or anyone else.
He just doesnt want to lead the charge on anything partisan, because he is Leader of a razor thin majority and he needs to work with Democrats to get anything done - confirming judges, etc..
It when push comes to shove - Kavanaugh, impeachment, etc.. he is definitely one of the good guys.
If voters could provide him with a handful of additional Republican Senators (and please no Romneys, McCains, or Flakes) he would be able to throw his weight around.
Officially, he is Senate Majority Leader, but for practical purposes, it is a dead tie.