Trump and Putin will then hold a working lunch together with their ministers and advisers, followed by a joint press conference.
"First, I don't believe the meeting should take place but if it is going to happen, President Trump must press Putin hard on the issue of election interference".
"I think it'd be a moot point; I don't think Russian Federation is sending anyone back over here for trial, the same way we wouldn't send anybody over there for trial", the Kentucky senator said Sunday on CNN's "State of the Union". "I don't think you'll have any, 'Gee, I did it". It doesn't mean anything. "But that doesn't mean they are bad".
Near Trump's hotel, police roped off a group of about 60 mostly male pro-Trump demonstrators waving American flags.
Chants of "We Love Trump, We Love Trump" broke out as the president's motorcade passed and Trump waved.
"They're going to be paying Russian Federation billions and billions of dollars a year for energy, and I say that's not good, that's not fair", Trump told CBS. "I'm not going with high expectations".
Finland's largest newspaper is welcoming President Donald Trump and Russian President Vladimir Putin with a series of billboards ahead of their long-awaited summit - mocking their notoriously bad relationships with the media with pointed messages of freedom of the press.
But after being asked about that by his interviewer, Trump said "certainly I'll be asking about it" although extradition is highly unlikely.
The U.S. has no extradition treaty with Moscow and can't compel Russian Federation to hand over citizens. Russia's constitution also prohibits turning over citizens to foreign governments.
Bolton tells ABC's This Week on Sunday that the indictments show that the American justice system is aware of Russian efforts to meddle in USA elections.
Gowdy's advice to Trump was to press for the extradition of the Russians accused in the latest indictment and of 13 who were charged in an earlier indictment with using social media to interfere in the US election.
Asked whether he would press his Russian counterpart to send to the USA members of the Russian military intelligence agency accused of hacking Hillary Clinton's failed presidential campaign, he said: "Well, I might".
Trump said the summit agenda will include among other things; Russia's involvement in Ukraine, Iranian interference in Syria, and Russian meddling in the U.S. presidential election. Putin hopes the meeting, mere hours after he presided over the World Cup finals, will help him forge good personal ties with Trump and focus on areas where Moscow and Washington could find common ground, such as Syria.
Putin is regarded as creating a culture of violence and impunity that has resulted in the killing of some Russian journalists.
Trump trashes the media on a regular basis, preferring the fabrications of Fox over all else.
Trump complained: "No matter how well I do at the Summit", he'll face "criticism that it wasn't good enough".
"If I was given the great city of Moscow as retribution for all of the sins and evils committed by Russian Federation over the years, I would return to criticism that it wasn't good enough - that I should have gotten Saint Petersburg in addition!" he tweeted. "We must deal with Putin's Russian Federation as the rogue state it is", he tweeted.
Trump and Putin have held talks several times before. It will be the first formal bilateral meeting between the two. The leaders also met last fall during a separate summit in Vietnam.
In this Friday, July 7, 2017, file photo U.S. President Donald Trump meets with Russian President Vladimir Putin at the G-20 Summit in Hamburg.
The highly anticipated meeting comes after 12 Russians were charged with hacking in the 2016 United States elections. John McCain, said the summit should be canceled in the wake of the indictments. "Look, I believe that having a meeting with Chairman Kim was a good thing".
Mr Trump has lashed out at other North Atlantic Treaty Organisation allies, urging them to spend more on defence.