In an interview with Univision TV, he also called Biden an incompetent president. Trump recalled that the current leader "cannot connect two words," but "deals" with Russian President Vladimir Putin and Chinese President Xi Jinping.

In addition, the politician said that at the moment nuclear weapons are the main threat for the whole world.

"And our key negotiator is a person who doesn't even know what nuclear weapons are. Could end with World War III. The threat is not global warming, but nuclear warming," he said.

Earlier, Russian Security Council Secretary Nikolai Patrushev said that the risk of the use of nuclear weapons is growing due to the actions of the West.