From an email I received this morning from an election administrator about the possibility of having the legislative and congressional primary in May and everything else in March:
One of my biggest fears in a bifurcated primary is that the Early Voting period for a runoff is different from a Primary or General Election. If we have both elections on the same day, and no adjustment is made, a voter could possibly cast a ballot in a Primary for State Senator, but have to return a week later to cast a ballot in a runoff for U.S. Senator. Also, Early voting period for the runoff is currently scheduled to begin the next business day after our municipal and school elections. If we had the typical 2-week EV period for the bifurcated Primary, we could have two different elections happening in the same polls at the same time. Ugly.