RealClearPolitics analyst Sean Trende predicted a narrow win in Florida 13 by Democrat Alex Sink. The actual outcome, per the Associated Press, is that Republican David Jolly won 48.5% vs. 46.7% for Sink in a three cornered race where a third party Libertarian candidate won 4.8%.
In a two party race, most of those Libertarian votes would have gone to the Republican. That fact makes Jolly's win even more impressive.
One of the best political analysts predicts a Dem win and the GOP wins instead. It is hard not to see that outcome as an omen or leading indicator of the November mid-term results.