Robert F. Kennedy, Jr. responded to former President Trump's allegations he is a "Democrat plant" and would be a "wasted protest vote," challenging the presumptive Republican presidential nominee to a debate. "When frightened men take to social media they risk descending into vitriol, which makes them sound unhinged," Kennedy wrote in an X post on Saturday afternoon. "President Trump's rant against me is a barely coherent barrage of wild and inaccurate claims that should best be resolved in the American tradition of presidential debate. President Trump, who has proven himself the most adept debater in modern American political history, should not be panicked to meet me on that stage." RFK Jr. said he will prove Trump "betrayed the hopes of his most sincere followers," arguing the former president "promised to end the Ukraine war and then colluded with Speaker Johnson and President Biden to fund it." Kennedy Jr. also said Trump "let Big Pharma and his corrupt bureaucrats run roughshod over him as President," and "promised to cut the deficit and ran up the biggest debt in history."