This wasn't meant as a political post. But since you bring it up, Nate Silver is current predicting a senate win for the GOP and is getting flak from the left. He's purely a numbers person. If the loudest critique in the recent past was from the right, yet he was provedd right, it doesn't automatically make him left leaning, it just makes him right! If the Dems do the same, it just proves his point that so many people in power fail to scrutinize numbers.
He is the pre eminent statistician in the mainstream. He focuses on sports as well, yet when he brings his expertise to politics he is derided by whoever doesn't like to hear his interpretation of numbers. The response to him is almost as illuminating as his analysis.