Former paralegal here. This is how most lawsuits are done at this phase. When you draft these suits, you are literally throwing shit at the wall to see what sticks. As the Judge winnows away the crap in the suit, Trumps attorneys will refine and amend the complaint until they get to the core valid issues of the matter. The real work begins there. That being said, most Plaintiff suits (even seemingly good ones) fail. Unless Trump has concrete proof that cannot be dismissed as opinion or biased (not likely, given our current political atmosphere), his case will likely not win. Even assuming Trump wins (and I hope he does), I believe this suit is a civil suit. That means unless it is published at an appellate level or higher, the only thing that is likely to happen is that there are monetary damages awarded and nothing concrete comes of it. The only way this really affects the law is if the case is published at a level that makes it precedent. Even then, unless it happens at SCOTUS, the reach of the precedent is limited to the jurisdiction of the publishing court.