The United States and its allies have imposed broad economic penalties on Russia over its war in Ukraine. As the conflict continues, experts debate whether the sanctions are working.

Secretary of State Marco Rubio told senators on Tuesday that the United States would hit Russia with fresh sanctions if talks over a Ukraine peace deal remained stuck. He also rejected claims that the White House is easing military help for Kyiv.

In a reversal, President Trump appears to have backed off joining a European push for new sanctions on Russia, seemingly eager to move on to doing business deals with it.