Nate Silver sends out apocalyptic tweet just in time for the holidays

Has anyone checked in on Nate Silver lately? Is he doing OK?
The FiveThirtyEight editor and statistician tweeted out a fairly apocalyptic (though probably not inaccurate) tweet Friday morning, analyzing who would win if only states that weren't burned in a nuclear holocaust could vote.
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Silver's tweet appears to be in response to Trump's announcement on Twitter yesterday that he wanted to expand the United States' arse