Former CIA Director John Brennan is threatening to sue President Donald Trump to stop him from stripping security clearances from other officials who criticize him, VOA reported.

"If my clearances -- and my reputation, as I'm being pulled through the mud now -- if that's the price we're going to pay to prevent Donald Trump from doing this against other people, to me, it's a small price to pay," Brennan told NBC television's Meet the Press Sunday.

"I am going to do whatever I can personally to try to prevent these abuses in the future and if it means going to court, I will do that," he added.