小罗伯特·F·肯尼迪被排除在辩论阶段之外，面临相关性挑战。 Robert F. Kennedy Jr. excluded from debate stage, faces relevance challenges.

据多方报道，小罗伯特·F·肯尼迪未能进入辩论阶段，并面临着保持相关性的挑战。 Robert F. Kennedy Jr. failed to secure a spot in the debate stage and faces challenges to remain relevant, according to multiple reports. 尽管肯尼迪参与了各种政治事务，但被排除在辩论之外引发了人们对他是否能继续发挥影响力的质疑。 Despite his involvement in various political matters, Kennedy's exclusion from the debate raises questions about his continued influence.