Natalia Veselnitskaya

A Russian lawyer whose work has focused on ending US sanctions on Russia and who met with Trump representatives Donald Trump Jr, Jared Kushner and Paul Manafort at Trump Tower in June 2016. Read further.

Sergey Kislyak

Until recently, the Russian ambassador to the US. A hub for contacts with Trump representatives including Kushner, attorney general Jeff Sessions, former national security adviser Michael Flynn and the president himself. Read further.

Sergey Gorkov

The Kremlin-connected head of Russian state investment bank Vnesheconombank. He met with Kushner during the presidential transition, but “no specific policies were discussed”, according to Kushner. Read further.

Dimitri Simes

President of the Center for the National Interest, a Washington thinktank, which hosted an April 2016 foreign policy speech by Trump. Trump, Sessions and Kushner appear to have met with Kislyak at the event, although both Kushner and Sessions have said any meeting was only in passing and they don’t recall what was discussed. Read further.

By Tom McCarthy