"The 90-day deadline was set in 2010.. But in 2012 when both major parties’ conventions would have fallen after the deadline, lawmakers changed the deadline for that year only"
https://www.ideastream.org/2024-04-07/larose-biden-wont-be-on-ohio-ballot-unless-democratic-convention-is-moved-or-law-is-changed
For the non-commenters at Wonkette.com