First a link to give an understanding of why this "private" meeting with no translator and no national security adviser is odd and scary.

"The revelation that President Trump had a second, previously undisclosed hour-long conversation with Russian President Vladimir Putin at the recent G-20 meetings in Hamburg, with only the Russian translator present was rather startling. This second meeting came on the heels of their earlier one, in which only U.S. Secretary of State Rex Tillerson was present from the U.S. side; it is still not clear what type of formal record Tillerson might have created."

There are no notes on Trump’s meeting with Putin. That’s a big deal. - The Washington Post

The link goes into some detail about the importance of having national security or translator with you at these meetings.

The second link is about a guy who this President should be making friends with. He is a centrist who has sided with both Republicans and Democrats and the kind of politician this country needs....

"President Donald Trump's decision to attend a second undisclosed meeting with Russian President Vladimir Putin without an interpreter is "troubling," said a Democratic member of the Senate intelligence committee.

"It's very concerning," West Virginia Sen. Joe Manchin told CNN's Chris Cuomo Wednesday on "New Day." "And it's something that we should know about. To go into it so-called naked without an interpreter from our side is troubling. It's a concern. It most certainly is."


Joe Manchin: Trump's 2nd meeting with Putin 'troubling' - CNNPolitics.com