https://dailycaller.com/2017/03/02/russian-ambassador-sergey-kislyak-appeared-as-obama-white-house-visitor-at-least-22-times/
The Obama visitor logs are known to be an imperfect record of how often someone visits the White House — since scheduled, but unfulfilled appointments are often included — but the logs make clear that Kislyak was welcome at 1600 Penn on more than a handful of occasions.
Kislyak was appointed ambassador to Washington in 2008.
n July 2016, Kislyak held a "diplomacy conference" at the Republican National Convention in Cleveland, during which his interactions with Trump officials became the subject of denial and controversy. In a speech in October 2016 in Detroit, Kislyak denied ever meeting with anyone involved in the Trump campaign. However, it later emerged that J. D. Gordon and Carter Page had spoken with Kislyak at the RNC. Kislyak did not attend the 2016 Democratic National Convention.[24][25]