No, executive privilege does not apply. You need to get rid of this Trumpette mentality. The President cannot apply executive privilege to investigations into him. Think about it a little bit.
It's already done.
I've not been threatening he is going to do it.
It's was done yesterday!
There is nothing you or anyone can do about it. No matter how hard you ignore it. It goes to the courts now. The court will try to get Congress and the DoJ to compromise. If no compromise the court will rule according to the law of the land. The law of relevance is the law I cited. 99.9% chance the court rules in favor of the DoJ should they be forced to make a decision.