He was actually pretty insistent on it, although obviously he wasn't so democratic with, say, Maryland.
I'm rather glad that he wasn't, because otherwise today there would be about 10 North American States, and they'd be speaking German in Paris.
Still, it is possible that a President could impose martial law to suspend an election in a time of national emergency. I would even go so far as to say that, in the event that many people would not be able to make it to the polls for whatever reason, it would be the right thing to do.