US dysfunction over Ukraine. "Risk of a split" [Interview].

Does Donald Trump's betting on Steve Witkoff and Dan Driscoll as the people with primary work for negotiations with the Russians mean that Secretary Rubio's function is increasingly marginalized in the White House? Do extremist changes in the clerical apparatus have a direct bearing on the level of American diplomacy? Among another things, this is discussed in an interview with Americanist Rafal Michalski.