Before revision:  First of all , if the receiver is dynamically consistent, I show the sender cannot make any profits more than Bayesian persuasion. In other words, ambiguity plays a role in persuasion only through inducing dynamically inconsistent behaviors. On the other hand, if the receiver is dynamically inconsistent and is able to adjust the information structure by ignoring the undesirable messages. Two seemingly undesirable features of ambiguous persuasion, synonyms and dilation, are not always undesirable to the receiver. In fact, they are always undesirable if and only if the payoff-relevant states are binary. Nonetheless, I show that the optimal value of ambiguous persuasion in the interim setting cannot be achieved in the current setting  .
After revision:  First of all , if the  cannot be achieved in the current setting .