He didn't seem to get much of it cleaned out in his first 4 years, and his tactics and style now are absolutely no different than they were before. He has changed literally nothing. So what if the evidence that he's going to do things differently this time?
Here's the problem. It is impossible for any one guy to "drain the swamp". That would involve tens of thousands of personnel decisions he can't make. And not being a legislator/lawyer, he needs a bunch of those as well to fix the various laws and regulations, draft the orders correctly, etc.. So, he needs to have highly competent, intelligence appointees at all levels.
The problem is that he just can't seem not to alienate potential allies on a daily basis. There isn't a single person who served with him his entire Presidency with whom he is on good terms, and he's on bad terms with most of the ones that even only served part time.
How is it going to be any better the second time around?
The voters are the problem. Garbage in, Garbage out.
The first time he was new to DC, and first he had Paul Ryan thwarting him and Nancy Pelosi. This time he knows who and what to go after.
He has 4 years to line up allies and he knows who not to trust. What he needs to do is have personnel lined up before he takes office, needs to demand the resignation letter of ever single appointed person, trump is the only one tough enough to do it. DeSantis ( who I really like) would be destroyed. Look at what trump accomplished without anyone helping.
No, it has to be Trump, unless your aim is to destroy both Trump and DeSantis.