US photographer presence at the meeting, just like Russia had ... didja know that? Both The US and Russia had their official photographers at the meeting. Why would press be invited to a meeting at that level?
https://www.usatoday.com/story/news/2017/05/10/trumps-meeting-russians-closed-us-media-but-not-tass-photographer/101520384/
After the photos began circulating, members of the White House press corps inquired whether the Russian media had been allowed into the closed meetings.
The White House responded, according to a White House pool report, by saying, "On background, our official photographer and their official photographer were present, that's it."
Talking Points Memosays TASS Washington bureau chief, Andrei Sitov, told TPM initially that no one from his Washington bureau was present at the meeting, but later revised his comments.
“Apparently the TASS person was admitted at the request of the Russian Foreign Ministry as the official photographer for the Russian side,” Sitov told TPM in a later email. “He is permanently assigned to cover FM Lavrov. His pictures from the meeting are available at the Russian FM’s Flickr. I was not even aware of this.”