I hadn't been considering Scott Walker at all.
But this made me sit up and pay attention:
“When it comes to immigration, as a governor I don’t have any direct role in that—but having talked to border state governors and having talked to other people, seeing how screwed up immigration has become under this president, it was clear to me talking to them and listening on this issue, traveling to the border actually going there with the governor of Texas Gov. Abbott, seeing the problems there, yeah from my standpoint going forward we need to secure the border, we need to enforce the laws that we currently have with an e-verify system,”
Might be that I'll have to look a bit closer, if and when....