If I can let my cynical self speak for a moment: From all I've gathered, not too much if he can prolong the trials until he is possibly reelected (insane to even type that out). Motherfucker will just self-pardon himself like a good little fascist. He also has a favourable judge in the Miami court from what I've heard. A little pro-trump judge to preside over Trumps trial, the biggest presidential crime drama in the US since.. Watergate? Dunno.
Honestly its mad he's allowed to run his campaign with several trials for high crimes on the table.