Ukraine has, seemingly, a surprise advocate in the White House: first lady Melania Trump.

A flurry of laudatory posts shared across Ukrainian social media this week came after US President Donald Trump revealed that his wife had taken to pointing out the contradictions in his negotiations with his Russian counterpart, Vladimir Putin, toward a deal to end the war in Ukraine.

"I speak to him a lot about getting this thing done," Trump said on Monday.

"And I always hang up and say: 'Well, that was a nice phone call,'" Trump said. "And then missiles are launched into Kyiv or some other city. After that happens three or four times, you say: 'The talk doesn't mean anything.'"

On Monday, Trump set a 50-day deadline for Putin to agree to a ceasefire in Ukraine or risk substantial economic sanctions. The deadline, like others set by the president, appears flexible. On Tuesday he said that, though he didn't think 50 days was a long time, "it could be sooner than that."

"I go home, I tell the first lady: 'I spoke with Vladimir today. We had a wonderful conversation,'" Trump........

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