National security adviser Robert C. O'Brien confirmed the possibility of a meeting between Russian Foreign Minister Sergei Lavrov during his visit to Washington with US leader Donald Trump, CBS reported

"You'll have to wait and see. But I think there's a possibility that'll happen. We're working on it," O'Brien told CBS News' Margaret Brennan in a post-interview conversation on "Face the Nation.”

"When [Secretary Mike] Pompeo has gone to Russia, [Vladimir] Putin's seen him. And one of the things that we've said with the- with the Chinese and the Russians is- and others, is we want reciprocity. And so Putin's met with ... Pompeo. I think as a matter of reciprocity, that's something we're looking at. But we're also looking at some other things. And we'll see if we can get there," O'Brien said. 

The last time the Russian Foreign Minister visited Washington was in 2017. He was received by US President Donald Trump.