"Nothing bad is going to come out of" the Helsinki meeting, he said, "and maybe some good will come out".
"Would you ask Putin to send them here?"
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.
"I hadn't thought of that".
When CBS News host Jeff Glor asked him to identify his "biggest foe globally right now", Trump said the European Union, as well as Russian Federation "in certain respects" and China "economically".
This email will be delivered to your inbox once a day in the morning. The president has continued his solicitousness toward Putin, even suggesting the USA adversary could potentially be a friend some day.
"There is no evidence that any American committed a crime", Rosenstein said during a press conference at the Department of Justice on Friday. "He needs to tell Putin, "don't mess around anymore because we are the 800-pound gorilla", he said during an interview with FOX Business" Liz Claman on Friday. "So, because we waste time saying, "Well, Putin needs to admit this and apologize" - he's not going to admit that he did it, and we can't take on face value anything they tell us". "If the president is involved, by all means put the information forward". "I think the European Union is a foe".
And John Bolton, the president's national security adviser, played down any possibility of Trump personally demanding Putin to hand over the indicted individuals during their private summit - particularly because of the lack of an extradition treaty.
Trump is blaming the Democratic National Committee for "allowing themselves to be hacked".
The indicted Russians have also been accused of hacking into the software used by computer companies that run the USA elections.
The Kremlin denied anew that it tried to sway the election.
Officers of Russia's military intelligence agency, the GRU, covertly monitored computers of Democratic candidate Hillary Clinton's campaign and Democratic campaign committees, and stole large amounts of data, the indictment said.
He said the summit is important as the start of a dialogue, not only about election meddling but a range of issues.
"I hope this message reaches Helsinki", the former Polish premier added. "We also do the same".
Trump's European trip has, by many accounts, been a complete disaster.
Trump has yet to condemn Putin or Russian officers for the charges.
"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.