Trump does not need any pardon from them since the charges against him was part of he Democrat election strategy and no proven crime was committed.
The one New York case where he was found guilty by the jury would be thown out of Court on appeal since no law was broken and the propaganda usage failed. There is also a small problem and that is claiming of Trump about payment of his legal costs that apparently is going to run into hundreds of millions of dollars to be paid by the Federal Government as well as billions of follars in libel he climed from the media,
Since he charges were concocted by the WH and the DNC the problem is that in the end the Cour may rule that te D NC will have to pay Trump's legal costs and after the $1,5 billion fund scandal donors will be very reluctant to donate that kind of money to th e DNC.