Johnson published the corresponding letter on his Twitter account on Sept. 25. In the letter, the speaker asserts that Markarova organized Zelenskyy’s recent visit to an ammunition plant in Pennsylvania — a key battleground state in the November presidential elections — which was also attended by PA Governor Josh Shapiro. Shapiro is a prominent member of the Democratic Party and actively campaigns for Vice President Kamala Harris. “Dear President Zelenskyy: I demand you immediately fire Ukraine’s Ambassador to the United States, Oksana Markarova,” the letter reads. “The facility [artillery she…