Also "preventing potential voters from registering to vote or casting a ballot" has nothing to do with identifying and removing illegal voters, who are not by any definition "potential voters.".
I think getting around that crooked consent decree would take no more than following the old maxim that Trump proved again this election season: "One man with courage is a majority."
Filing deadlines:
For voter-requested recounts, within five days of the official canvass.
So I think the deadline has passed.