IMHO Trump is going to try to prevent Biden to have 270 confirmed voters in the electoral college ...
and thus by 6 January a more Trump favorable method of appointing a Presidental will kick in automatically:
If no candidate receives a majority of the electoral vote (at least 270), the President is determined by the rules outlined by the Twelfth Amendment. Specifically, the selection of President would then be decided by a contingent election in a ballot of the House of Representatives. For the purposes of electing the President, each state has only one vote. A ballot of the Senate is held to choose the Vice President. In this ballot, each senator has one vote. The House has chosen the victor of the presidential race only twice, in 1800 and 1824; the Senate has chosen the victor of the vice-presidential race only once, in 1836.
https://en.wikipedia.org/wiki/United_States_presidential_election
@jansegers Thats not exactly how it works. First off the date is december 14th, and if a state hasnt finished counting, or if the state is undecided, then it will not effect the fact that the electorate still gather and still vote. In such a case the elecorate will vote regardless of any official count or otherwise.
So even if trump forces a recount or takes a state to court it wont stop things from moving forward and wont trigger a contingent election.