U.S. President Donald Trump has asked National Security Adviser John Bolton to invite Russian President Vladimir Putin to Washington.

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"In Helsinki, @POTUS agreed to ongoing working level dialogue between the two security council staffs. President Trump asked @Ambjohnbolton to invite President Putin to Washington in the fall and those discussions are already underway," White House press secretary Sarah Sanders wrote on Twitter on July 19.

As UNIAN reported earlier, Trump via Twitter stated he was looking forward to another meeting with his Russian counterpart Putin and that he believed in a possibility of resolving the Ukraine crisis.