Ms. Rodnina, a member of ruling United Russia party, defended the Twitter post as an expression of free speech, but she later deleted the photo.
“Freedom of speech is freedom of speech, and you should answer for your own hang-ups,” she told critics on her Twitter page.
Michael A. McFaul, the U.S. ambassador to Russia, responded to her “outrageous behavior, which only brings shame to her parliament and country.”
As an angry Brazilian President Dilma Rousseff announced Tuesday that she was calling off her state visit to Washington next month, President Obama received another rejection.
Sierra Leone President Ernest Bai Koroma postponed a Washington visit scheduled this week. He gave no reason for his decision.
Ms. Rousseff’s reasons, however, were clearly stated. She is outraged over revelations that the National Security Agency regularly intercepted her phone calls and targeted the state-run oil company, Petrobras.
And she is still waiting from a public apology from Mr. Obama.
• Embassy Row is published on Mondays, Wednesdays and Fridays. James Morrison can be reached at firstname.lastname@example.org or @EmbassyRow.