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.

The president’s patience will likely run out, Rubio said, signaling an ultimatum to the two parties given that a deal still seems out of reach.

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 the negotiations.