The Election information page doesn't seem to like SuperUser.
When you load the page, only the Loading elections page item is ticked and then the checklist disappears. However, the page continues to display the following even though multiple people have already nominated:
No one has braved the nomination process yet! Check back later.
Note that all other site elections seem to work, including sites that have a custom domain name like SU (e.g. ServerFault)
The SU election is the first election since plans for network-wide HTTPS was announced. Maybe some preliminary changes related to this have stuffed something up?
Repro'd on Firefox and Chrome. The election has been up for almost 10 hours now, so I don't think that I should blame caching.