Johnson doesn’t just move up into a new job. They’d have to pick a new vice president. In the middle of they could pick Johnson I suppose, I don’t know why he would want to be the vice president when he is Speaker of the House though. Now the question is how they pick a new vice president, because I don’t believe there’s any precedent to guide that. Would they have to nominate one in Congress and have them vote on him? That’s what they would do if the vice president already been sworn in, but since he wouldn’t have been at that point I don’t know there’s any real way of knowing. You can make an argument that the RNC would be able to just name one, but again there’s no precedent.