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... Asked on NBC's "Meet the Press" if he were actively working to end the nearly 3-year-old Ukraine war, Trump said, "I am."

He refused to say if he had spoken to Putin since winning election in November. "I don't want to say anything about that, because I don't want to do anything that could impede the negotiation," Trump said.

Trump's call for an immediate ceasefire went beyond the public policy stands taken by the Biden administration and Ukraine and drew a cautious response from Zelenskyy. It also marks Trump wading unusually deeply into efforts before his Jan. 20 inauguration to resolve one of the major global crises facing the lame-duck Biden administration. ...

Zelenskyy described his discussions Saturday with Trump, brought together by French President Emmanuel Macron, as "constructive" but has given no further details.

Zelenskyy cautioned that Ukraine needs a "just and robust peace, that Russians will not destroy within a few years."

"When we talk about an effective peace with Russia, we must talk first of all about effective peace guarantees. Ukrainians want peace more than anyone else. Russia brought war to our land," he said Sunday in a post on the Telegram messaging app. ...

Trump has long complained that European and the Canadian governments in the mutual-defense bloc are freeloading on military spending by the U.S., by far the most powerful partner in NATO. NATO and its member governments say a majority of countries in the bloc are now hitting voluntary targets for military spending, due in part to pressure from Trump in his first term.

Asked whether he would consider the possibility of pulling out of NATO, Trump indicated that was an open question.

"If they're paying their bills, and if I think they're treating us fairly, the answer is absolutely I'd stay with NATO," he said.

But if not, he was asked if he would consider pulling the U.S. out of the alliance. Trump responded, "Absolutely. Yeah, absolutely." ...