I’m not saying lies should get promoted, but I have never seen a campaign season where a candidate files a lawsuit against another candidate for making an attack ad.
...
Trump may have close to $10 billion in assets. It’s wise to protect them and prevent them from being turned into a liability. Other candidates are still free to tell the truth if they want to attack him.
He threatened to sue Club for Growth over these ads below.
For what, I don't know, maybe it's because they used old and current news clips framing Donald's positions that he doesn't want people to know about? But, this is a campaign, attack ads are part of the game, and they are free speech, so long as they aren't libel and slander.
Trump on Taxes Montage
Trump: "Eminent Domain is wonderful"
Trump: "Trump on Healthcare Montage 2015"