His comments stood in marked contrast to remarks that Trump made during the summit of the Group of 7 major economic powers over the weekend in Quebec, where he lashed out at traditional allies such as Canada and said Russian Federation ought to be invited to rejoin.
Shortly before arriving at the summit in Canada Mr Trump said: "Russia should be in the meeting, should be a part of it".
Special prosecutor Robert Mueller is investigating Russia's involvement in the election, including links to Trump's campaign.
The move came after Trump refused to endorse a G-7 statement.
During a recent Q & A session Putin answered a question about the chances for the WWIII with a quote from the famous physicist Albert Einstein: "I don't know with what weapons World War III will be fought, but World War IV will be fought with sticks and stones".
Given all the mischief Vladimir Putin creates, it can be easy to forget that Russian Federation is only the 12th-largest economy in the world, about 1/14th the size of the US.
Dennis Rodman broke down in tears talking about North Korea-US situation
Rodman first visited North Korea in 2013 when he toured the country with the Harlem Globetrotters. And obviously he has a great rapport with Kim Jong Un - who is a basketball fanatic himself .
He said: "The relationship between Russian Federation and China is a friendly, neighbourly one, developing in states in the spirit of over-arching strategic partnership".
Merkel said it was not clear whether the group would issue a final directive, adding that failure to do so would be an honest reflection of the lack of agreement among Canada, the United States, Japan, Britain, Italy, France and Germany.
President Donald Trump has opened his second day at an global summit at a breakfast discussion on gender equality. Macron tweeted a short video of the two together, saying: "Sharing, reaching out, always, to promote the interests of the French people, and all those who believe in a world we can build together". The annexation of Crimea, alleged USA election interference, the war in Syria and a poisoned spy in Britain are just a few of the storms surrounding the Kremlin before Putin officially declares the tournament open June 14.
"Why should I, as President of the United States, allow countries to continue to make Massive Trade Surpluses, as they have for decades, while our Farmers, Workers & Taxpayers have such a big and unfair price to pay?"
"They should let Russian Federation come back in because we should have Russian Federation at the negotiating table", he said.
Trump headed to the G-7 meeting after his administration imposed sanctions on those nations participating, likely making for a fractious summit.
Warriors and Cavs Refuse to Visit White House - Katie Zehnder
On Tuesday, LeBron James said neither his Cavaliers nor the Warriors would accept a visit as a victor of the NBA Finals . It is important to note, however, that no Eagles players kneeled during the national anthem last season, TIME confirmed.
"Russia is focused on other formats, apart from the G7", Kremlin spokesman Dmitry Peskov said in a brief statement reported by the government-controlled Sputnik news agency.
Trade, investment and development cooperation issues will also feature prominently at the SCO, Murphy said, given the climate of "rising anti-globalisation", stoked by Trump's nationalist "America First" policy. "Everyone agreed, including President Trump".
Kudlow says Trump won't let a Canadian prime minister push him around on the eve of his summit with North Korean leader Kim Jong Un.
Trump, before jumping on Air Force One to fly to Canada which is hosting the G7 summit, called for a return to the body's pre-2014 "G8" formula.
"Our relationship is very good", Trump said.
Canada Parliament Condemns US Attack on Trudeau; Country Simmers
In a mocking tone, Kudlow rattled off the reasons Trudeau offered for his barbed critique of Trump's policies. June 10 - Trump's economic advisor Larry Kudlow tells CNN that Trudeau "stabbed us in the back".