Trump blamed former President Barack Obama for failing to stop a dozen Russian military intelligence officers from hacking into emails belonging to the Hillary Clinton campaign and the Democratic Party.
He said the presidents would meet one on one with just their interpreters.
The charges shine an even brighter spotlight on Trump's treatment of Putin, who has repeatedly denied that Russian Federation sought to skew the election that Trump, a Republican, unexpectedly won. Senate Minority Leader Chuck Schumer, D-N.Y., was among the first to call for Trump to cancel the summit, warning that, "Glad-handing with Vladimir Putin on the heels of these indictments would be an insult to our democracy". He may deny it, ' Trump said.
"Start treating Putin like you do with the Democrats - tough, strong, 'we're not going to take your nonsense", he said.
The summit will begin with a tete-a-tete meeting between Putin and Trump at the presidential palace in Helsinki, and then there will be negotiations in the format of a working meal also involving the delegations, followed by a joint press conference where both presidents will make statements and answer questions, according to Ushakov.
Meanwhile, Sen. John McCain, a leading Republican senator and Trump critic, has said Trump must hold Putin accountable or else he should not proceed with the meeting.
White House spokeswoman Lindsay Walters said "today's charges include no allegations of knowing involvement by anyone on the campaign and no allegations that the alleged hacking affected the election result".
Donald Trump Has Arrived In Windsor To Meet With The Queen
I didn't think they put it in, but that's all right. "She's a very smart, very tough, very capable person", Trump said of May. May has been making the case for a United States free trade deal with Trump, on his first UK visit as president.
Senator Mark Warner of Virginia, the top Democrat on the Senate Intelligence Committee, told reporters Friday that Trump shouldn't meet alone with Putin, adding that he's "afraid the president could be take advantage of" due to his lack of preparation.
"It reflects the way Trump and certainly some of the people in his orbit view things", Jeff Mankoff, deputy director of the Washington-based Center for Strategic and International Studies' Russia and Eurasia Program, said in a phone interview.
For its part, Russian Federation said it was looking forward to the meeting.
The meetings were expected to be unusually tense after Trump trashed May's Brexit plans in a diplomacy-wrecking interview with The Sun newspaper that published late Thursday night. "But considering the discussion among the European allies, not only the Americans, I think we need to ask ourselves consistently what more we can do". The Trump administration has been reviewing its position, so it's unclear whether Trump and Putin will do more than agree that their staffs should study the possibility of an extension. North Atlantic Treaty Organisation allies have also increased defense spending by $33 billion in the past year, which led Trump to ask Friday: "Do you think Putin's happy about that?" "[But] We have no choice", Trump concluded. The leaders were reported to be accompanied by Russian Foreign Minister Sergey Lavrov and US Secretary of State Michael Pompeo as well as various experts and advisors.
Russia's foreign ministry described the allegations as a "heap of conspiracy schemes" meant to "damage the atmosphere" before Monday's talks.
"But it makes it very hard to do something with Russian Federation".