Robert F. Kennedy Jr. is expected to appear in court to defend his effort to get on the presidential ballot in Pennsylvania, where Democrats are angling to force him off. Tuesday's court hearing will test allegations by challengers who say Kennedy’s paperwork states a false home address and contains other shortcomings. Kennedy’s campaign dismisses the challenge as “frivolous.” Should Kennedy appear on Pennsylvania’s ballot, he could siphon support from Republican nominee Donald Trump or Democratic nominee Kamala Harris. A margin of tens of thousands of votes delivered victory to Joe Biden in 2020 and Trump in 2016. Pennsylvania’s 19 electoral votes are tied with Illinois for fifth most.