But Jon Huntsman, the United States ambassador to Russian Federation, says Monday's meeting "is really the first time for both presidents to actually sit across the table and have a conversation, and I hope it's a detailed conversation about where we might be able to find some overlapping and shared interests".
Other portions of the Trump interview are to air on various CBS news programs on Monday.
"The very fact that we have our heads of state getting together for this kind of conversation is a big, big delivery", Huntsman said. Trump has also said he has low expectations for the meeting, which could be overshadowed by accusations that Russians meddled in the USA 2016 election.
The Kremlin said it considers Mr Trump a "negotiating partner".
"I go in with low expectations", Trump told CBS.
When asked Friday about relenting to Russian Federation on the status of Crimea, Mr. Trump said, "We'll see what happens" at the summit.
Also Sunday, British Prime Minister Theresa May revealed a suggestion Trump gave her during their meeting on Friday regarding negotiations with the European Union over Brexit, which the president later said she found too "brutal".
But it is the matter of election meddling, including fears Russian Federation could try to interfere in the midterm elections this fall, that could play a central role in the summit talks or loom even larger if not addressed.
"You know, the Russians take the position, you can like it or not like it, that their constitution forbids them to extradite Russian citizens".
The United States is not seeking "concrete deliverables" from the Trump-Putin meeting, a senior White House adviser said on Sunday. They're going to spy on us.
The context for these demands was the indictment Friday of 12 Russian military intelligence officials for the hacking of several Democratic email systems during the 2016 presidential election, and the leaking of the stolen emails.
"He better know the right Russian psyche", said Senate Appropriations Chairman Richard C. Shelby of Alabama, who led a GOP delegation to Russia earlier this month.
They also expect Trump to bring up Russia's incursion into Ukraine and the allegations of Russian meddling in the election. It was Trump, observers note, who sent emissaries to Moscow to negotiate the summit with Putin on short notice. He kind of goes in and wings it", Warner said on NBC's "Meet the Press.
President Donald Trump's ambassador to Moscow says he hopes Trump and Russia's Vladimir Putin have "a detailed conversation about where we might be able to find some overlapping and shared interests".
"Some leaders in Europe are anxious that Mr. Trump would indirectly support" Russia's position on Crimea and deals could also be made with regard to Syria, said David Criekemans, associate professor in International Relations at University of Antwerp, Belgium.
President Donald Trump is setting expectations low for his high-stakes summit with Russian President Vladimir Putin, assuring that "nothing bad. and maybe some good will come out" of Monday's meeting in Finland.
The United States has no extradition treaty with Moscow and can't compel Russian Federation to hand over citizens, and a provision in Russia's constitution prohibits extraditing its citizens to foreign countries.
"He told me I should sue the European Union - not go into negotiations", May told the BBC.
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