Deez can detail this better than I can. Dems WANT Trump and his coat tail state level candidates to win nominations because they know they're easier to beat. They get us coming AND going. Trump is going to be targeted by the doj so he'll limp into Nov 24.
Think about Schumer's conversation with Biden on the tarmac last fall. Schumer was astounded herschel walker had a shot at winning. Dems funded walker, Dr Oz etc etc. In primaries. As long as Trump has the swamp (esp fbi) creating a false world and misinformation against him, he can't win. Ditto for many of his coat tailers because its guilt by association (maga!!)
The raids on Trump and the legal nonsense thrown at him serve 2 purposes in the eyes of dems / swamp. One, it whips up a pro Trump sentiment among the gop. Two, it creates an image to independents that Trump has a legal stench on him. Thus Trump's ceiling on voters is firmly in place.
Trump needs to lose the primary. Period