If Evers were to reschedule the special election, his options are limited.

State law says the earliest a primary can be held is 92 days from the governor’s order. But 92 days from Monday, the day Duffy resigned, would be Dec. 24, Christmas Eve.

If there’s a primary – as there will be in this election, since state Sen. Tom Tiffany and Army veteran Jason Church, both Republicans, have announced their candidacies – the runoff must be held no fewer than 28 days before the general election.

Pushing the general election to Jan. 27 moves the primary to Dec. 30. (He could have picked the next day, Tuesday Jan. 28, but that would have put the primary on New Year’s Eve.) Evers can’t push the election back much beyond that; the state has a “blackout period” on special elections between Feb. 1 through April 7.

One option would be to attach the special primary and election to the already scheduled Feb. 18 spring primary and April 7 spring election, but that would leave the 7th Congressional District seat vacant for about half a year.

The winner of the special election will serve through the end of 2020 and have to run again in the November 2020 election if he or she wishes to serve a full two-year term.