Drudge has left the building. The site was purchased by someone else. Matt Drudge has some responsibility for giving the site to someone or group that is much more left-leaning or at least Never Trumper than he was however.
There is absolutely no actual evidence that drudge sold his site to anyone.
He changed his advertising agency in the recent past but has not sold the site.
He recently was in the news and in his interview did not mention anything about selling his site.
This belief that he sold his site is just a bogus explanation for his becoming a vile rabid never Trumper.