This year, the Florida legislature passed a bill that lets state officials choose the presidential primary date. This story shows that it is impossible to predict when the Florida presidential primary will be held. That uncertainty affects two other states that also have flexibility, New Hampshire and South Carolina. New Hampshire is another state in which the law does not determine the date, and which lets a state executive official decide, very late in the process. And the South Carolina Republican presidential primary is being paid for by the Republican Party, so the party is relatively free to also decide much later when to hold the primary.