WASHINGTON, October 20. /TASS/. US President Donald Trump said he would be ready to tighten unilateral sanctions against Russia "at any moment" if Washington and Moscow fail to reach an agreement on Ukraine.

"And by the way, I have the right to do that at any time. Immediately. So if it doesn’t work, I can always do it," Trump told reporters when asked why he had not exercised his authority to impose new sanctions on Russia under legislation introduced at the initiative of Lindsey Graham (designated as a terrorist and extremist in Russia).

Trump also stressed that most of his fellow Republicans understood his decision not to invoke the legislation for now.