My understanding was that Bill fired blanks and always had.
Yeah but like towards the end of the article says. One conspiracy counteracts the possibility of the other being true. Although bill may just have an extremely low motility sperm or count making the nigger the unlikely child while also allowing for web hubbel to be chelsea's father.
How would someone know that?
There was an article about it back in '99 where Juanita Broderick claimed that Bill told her he was sterile.
"Broaddrick said that after the assault, Clinton told her not to worry about pregnancy because childhood mumps had rendered him sterile." - https://en.wikipedia.org/wiki/Juanita_Broaddrick#cite_note-rabin-10 (Original article is paywalled).