As Ukraine negotiates an end to the war, Volodymyr Zelensky had to part ways with his chief diplomat, Andriy Yermak, a political lightning rod and a close friend. The Ukrainian president is doing everything to downplay the departure of his right-hand man.

Although Yermak was Zelenskyy's right-hand man, observers say his downfall could benefit the president in short term.

As Ukraine negotiates an end to the war, Volodymyr Zelensky had to part ways with his chief diplomat, Andriy Yermak, a political lightning rod and a close friend. The Ukrainian…