Sen. Chris Murphy called the failed meeting, in which no ceasefire was reached for the war in Ukraine, a "disaster" while on air with NBC News.

As Trump and Putin gear up for their Alaska summit, the stage is set for what could be a fresh chapter in US-Russia relations. The high-profile meeting is scheduled to take place at Elmendorf Air Force Base.

Oil prices were largely unchanged on Monday after a drop in early trade, as the United States exerted no further pressure on Russia to end the Ukraine war through measures to disrupt its oil exports following a meeting of the leaders of both nations.