I've scrolled through the top ~10 or so comments, and none of them, describe or comment on the nature of the charges against Trump. To be fair to the commenters, most stories are vague. The charges relate to hush money payments to Stormy Daniels, but hush money is not a crime. It's also not a crime to have an affair with Stormy Daniels. So the most salacious parts of the story are not what the crime is. My understand…
However:
1 iirc Grand Jury's are the ones that get to do everything behind closed doors. So we wouldnt know if they had a smoking gun until after trial possibly.
2 The US has a history of pursuing people it doesn't like through financial crimes. Rico etc.
I think its easy to see this in the lens of "oh its another attack on trump that will go away again" and if you experience your entire life through the highs and lows of the media cycle thats quite possibly going to be the case. But I think each prong of attack opens up a little more of Trumps weakness and eventually, either through weight of legal cost or dumb luck they will find something to hang him with.