Putin told Trump during the call that Russia won’t back down from its goals in Ukraine, according to Yuri Ushakov, a close adviser to the Russian president, despite the U.S. leader’s calls for a speedy end of the conflict.

The president repeatedly said on the campaign trail that he would bring an end to the war in the first 24 hours of his second term.

President Donald Trump revealed his growing frustration with Russian President Vladimir Putin on Thursday, telling reporters he made no progress “at all” on ending the Ukraine war despite a lengthy phone call.