President Volodymyr Zelenskyy invites American counterparts Joe Biden and Republican frontrunner Donald Trump to the frontline in Ukraine. He also explains the dismissal of Valerii Zaluzhnyi, discusses the tasks on the front, and explains why he won’t negotiate with Vladimir Putin. RBC-Ukraine provides the main statements from an interview with FOX News chief political anchor and executive editor of “Special Report” Bret Baier, near the front line in the Kharkiv direction, just a few kilometers away from heavy fighting. Zelenskyy emphasizes the importance of the interview in such a dangerous l…