He's fired the Secretary of Defence. Apparently more to firings are too come and some resignations.I suspect he will try to do a lot but he is about to find the sicophants will turn on a dime when they know he no longer is the power player, and he will be blocked in doing most, if not all, of what he wants to do.
I think you'll find a few Republicans who are slowly backing away but it's clearly not as drastic as initially thought... Mitch McConnell just gave Trump his blessing today after seeming to distance over the weekend. Running away too quickly would expose just how spinless the party has been over the last 4 years. It's going to be a while before they can make a clean break from Trump.