He got the election 100% right, but so did other statisticians like him because the polls, his input, were 100% correct.
But since the election he has ventured off into forecasting other stuff with mixed results.
https://twitter.com/fivethirtyeight/status/313490728430997504
East Final 4 Odds: Indiana 51%, Syracuse 12%, Miami 11%, Marquette 6%, NC St. 5%, Butler 3%, UNLV 3%
Yeah, but other than predicting the outcome of presidential elections, what has he ever done?