"I go in with very low expectations".
The U.S. now has no open treaty with Moscow and can not force Russian to extradite citizens, as a provision in the Russian constitution prohibits this.
Donald Trump will meet Validmir Putinin Helsinki on Monday.
"I can't tell you that, I assume he probably is", Trump told Morgan, conducted aboard Air Force One in Essex, England, on Friday and published on Sunday in The Daily Mail.
Warner also argued that the White House needs "other individuals from his administration in the room so we know that at least someone will press the Russians on making sure they don't interfere in future United States elections".
Morgan asked Trump about "ruthless" North Korean leader Kim Jong Un, who the president had lavishly praised after the pair held a last month.
He said that "nothing bad" and "maybe some good" would come out of the meeting.More news: Manafort gets VIP treatment in US jail
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"I think it'd be a moot point". They are going to interfere in our elections, we also do the same...
Trump also told Britain's Daily Mail newspaper in the interview published on July 14 that he "fully intends" to run for reelection in 2020, adding that "it seems like everybody wants me to".
These Democrats also appear to be fearful that Trump won't take a firm stance on the Russian meddling in the 2016 election at the summit and that Putin will take advantage of him.
The Finnish media group Helsingin Sanomat took out advertising ahead of the Trump-Putin summit in Helsinki to make a point. "And I heard that they were trying, or people were trying, to hack into the RNC too, the Republican National Committee, but we had much better defenses". It is in that meeting that the leaders might delve into more substantive issues.
"Our relationship with Russian Federation has NEVER been worse thanks to many years of USA foolishness and stupidity and now, the Rigged Witch Hunt!" "We have asked, and the Russians have agreed, that it will be basically unstructured".
Trump has furiously denied his own campaign colluded in the alleged interference, and has generally denounced the special investigation as a "witch hunt" promoted by his enemies to delegitimise his victory.
Huntsman was interviewed on NBC's "Meet the Press", Paul appeared on CNN's "State of the Union" and Bolton spoke with ABC's "This Week".