I applaud Trump for going after these scummy liars legally. He’s threatening them with the power of his purse, something our RINOs in Washington are too cowardly to do. Those who falsely smear another’s record like the Club for Chinese Growth is doing should be subject to civil liabilities, not immune just because the person is a politician or celebrity.
If Trump actually ever filed a libel suit over these ads, he would probably be the one in trouble. Filing a frivolous lawsuit against someone, one in which there is no reasonable chance of winning, simply to cause them great financial hardship as a result of defending themselves, especially when you intent is to prevent them from participating in a public debate (such as a political campaign) is considered a SLAPP suit. Trump could get hit with sanctions, attorney fees and significant punitive damages. Anti-SLAPP statutes are written specifically to discourage and punish the kind of lawsuit Trump is threatening. And if you think the lawyers for the CFG don't know that, you are sorely mistaken.