Trump couldn't contest most either.
Sending a document to court doesn't make the contest valid, just like the Special Council Investigation existing didn't make it a valid contest.
Read the court cases, not the media circus. The media, left wing and right wing, all have a monetary or political incentive to piss you off. Go to the source when you can. Read the accusation and the courts' replies.
You think the Democrats didn't start spreading rumors to their base either? They did the exact same stunt four years ago, except they blamed Russians instead of the ballot counters (who are scrutinized by both parties) and USPS.