The Trump administration made clear it will abandon peace attempts for Ukraine if Russia fails to adhere to any terms, but the president did not say whether there would be consequences.

A new meeting is expected next week in London, and Rubio suggested that could be decisive in determining whether the Trump administration continues its involvement.

U.S. efforts to mediate peace talks between Russia and Ukraine are reaching a pivotal moment, with President Trump saying both sides need to quickly show progress or his administration will exit