I keep reading conflicting information, with some saying that its nearly impossible to get "votes taken off" by the courts.

Have there been any previous cases where judges were able to take votes off for a candidate?

Or is it more likely, that if Trump was able to provide concrete proof of fraud, that courts would only be able to void the results/certification and turn it over to the House?

I'm not really knowledgeable about law and courts but would appreciate it if anyone could explain how this will work.