If you haven’t followed the news lately, the sweepstakes to buy Fort Lauderdale-area based Spirit Airlines has taken some wild turns the last week. Spirit’s board has agreed to merge with Frontier which as we wrote in February would create a massive ultra-low cost carrier, but an arguably superior offer from jetBlue is sitting on the table and has been recommended by outside groups.

Not only is Spirit based in Florida, but jetBlue and Frontier both have highly Florida-dependent route structures.

JetBlue CEO Robin Hayes has sent this letter out this evening, as d-day approaches for Spirit’s shareholders to either force a merger with jetBlue or let the board proceed with its plans to merge with Frontier. This saga has taken many twists and turns this past week, so expect more drama in the wake of this letter.