That's like asking, who is in charge at the White House. We know it isn't pedoJoe. The list of possibilities is long. Who is in charge of the republican party? See same extensive list.
There is something to that. But the leader of the gop needs to be a visible leader. We cannot have secret leaders like the Dems do. I think it’s Trump. He’s a former president. He was undoubtedly the leader when he was president. He’s the front runner for the nomination. His congressional picks were mostly nominated. If he’s not the leader, then that’s a sign that he’s abdicated.