While some of the banned amounts are linked to white supremacy, Ken Jennings confirms his involvement with another banned bid number
While the record-setting Ken Jennings bid $69 on every final Jeopardy, he tweeted:
this is officially forbidden on Jeopardy now, as of last year.
not even joking.
$69 is banned
And according to Uproxx, $14, $1488 & $88 are also banned having links to white supremacy
SOURCE: Uproxx