The Associated Press called the race for Murphy just 30 minutes after the polls closed, as he was leading 54% to 45%.
The former WWE CEO spent $50 million of her personal fortune in her failed 2010 campaign against Richard Blumenthal, and she is believed to have spent about as much against Murphy. Between both campaigns, McMahon has now spent a cumulative total of over $90 million in pursuit of federal office. Some say it's ever more than that. That is also more than any other American in history.
An article on McMahon's loss is available here.
Another article is available here.