Haven't you noticed? He lets EVERYTHING go when he realizes that he can't do anything about it. Ted Cruz's sample ballots: "we don't care about that anymore". Lock Her Up: "Great sound bite but we don't care about that anymore". FROM THE BEGINNING, that's all he does. Even going further back, "I'll sue you" was a threat he would routinely use and ROUTINELY never follow through on!
He's an opportunist who tries any bullshit for about two weeks and then ditches it when it doesn't work, just like everyone told him from the beginning it wouldn't. And everyone noticed it but you!