Ukrainian President Volodymyr Zelensky joined European and NATO leaders to thank Trump — a lot — six months after the White House accused him of being ungrateful.

President Trump has offered only vague assurances of security guarantees for Ukraine if President Volodymyr Zelensky agrees to cut a deal with Russia.

It was a striking contrast to the meeting six months ago, when Trump, red-faced and angry, accused an agitated Zelensky of failing to show enough gratitude to the United States. The blowup was so heated that the Ukrainian delegation was sent from the White House without being allowed to eat their waiting lunch.

One detail of President Trump’s meeting Monday with Volodymyr Zelensky drew particular notice: the Ukrainian president’s attire.Zelensky’s decision not to wear a suit at the two leaders’ February meeting in Washington sparked a testy exchange.

Volodymyr Zelensky may be unwilling to make political and territorial concessions in his war with Russia, but on Monday, the Ukrainian president made allowances of his own, arriving at the White House in a suit jacket.

President Donald Trump and others mocked Ukrainian President Volodymyr Zelensky in March when he showed up at the White House in his customary military-style fatigues. Zelensky apparently got the message.

"The Federalist" CEO Sean Davis appeared on FNC's "The Will Cain Show" on Monday and reacted to Ukrainian President Volodymyr Zelensky's meeting with President Donald Trump at the White House. WILL CAIN,

President Donald Trump and Ukraine President Volodymyr Zelensky met Monday in the White House. Trump said the United States will give "very good protection."