Welcome to the News Hour. President Trump announced a dramatic shift in U.S. policy on Ukraine today in New York City.

He previously suggested Ukraine would have to give up territory to make peace.

But today, he said the country could win back all its territory, which has been occupied or annexed by Russia since 2014.

The president made the announcement on social media

after delivering the first speech to the United Nations of his second term.

As Nick Schifrin reports, the president's speech focused less on U.S. leadership

and more on what he believes the rest of the world is getting wrong.

Today, to an international community that doubts but still desires U.S. leadership, President

Trump delivered a dark disparagement of global priorities.

I'm really good at this stuff.

Your countries are going to hell.

With that broadside, President Trump took his closed border vision global.

And U.S. officials tell PBS NewsHour the U.S. will push to change 75-year-old international

refugee laws.

Asylum seekers would have to claim protection in the first country they entered.

Asylum would be temporary, and the host country would arbitrate the asylum case.

We have to solve the problem, and we have to solve it in their countries, not create

new problems in our countries.

And President Trump combined that criticism with the denigration of decades of efforts

to combat with the scientific community judges an existential threat to the planet.

This climate change, it's the greatest con job ever perpetrated on the world.

I love the people of Europe, and I hate to see it being devastated by energy and immigration.

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