Summary: Politics Stack Exchange will begin the nomination stage for a special election on September 21st to bring on two additional moderators - this is both to get the team back up to at least three and to bolster the mod team during the 2020 US election.
For full details of the process, see the announcement on Meta Stack Exchange. The timeline:
On September 28th, if there are enough candidates, we'll run an election. If not, I'll simply appoint the candidate/s. (There's a small chance we'll need to remove a nomination, but I doubt that will come up.)
If there is an election, we'll announce the results on meta on October 6th.
(Note for current moderators: there's no need to nominate yourself even though you'll likely get an email saying you should. The system assumes the first election is a graduation election, which would mean moderators would need to be re-elected. This isn't that sort of election.)
If you have any questions about the process, please stick them in an answer here.