Christie is spinning as bunch of smack, but he just effectively called Obama a liar, without flat out calling him a liar.
Senate Democrats supported rule that led to insurance cancellations
http://politicalticker.blogs.cnn.com/2013/10/31/senate-democrats-supported-rule-that-lead-to-insurance-cancellations/
In September 2010, Senate Republicans brought a resolution to the floor to block implementation of the grandfather rule, warning that it would result in canceled policies and violate President Barack Obamas promise that people could keep their insurance if they liked it.
Under the grandfathering regulation, according to the White House's own economic impact analysis, as many as 69 percent of businesses will lose their grandfathered status by 2013 and be forced to buy government-approved plans, the Iowa Republican(Chuck Grassley) said.
The rule essentially prevents insurance companies from keeping their grandfathered status if they make changes to their plans. In practice, insurance companies are loath to leave their plans unchanged so grandfathered plans are disappearing, and people are being forced to change their plans to meet Obamacares more robust coverage requirements.
His Democratic colleagues ignored him. Others even mocked him. But, now, congressmen who accused him of fearmongering are holding their tongues, for everything Senator Mike Enzi (R-Wy.) predicted about Obamacare has turned out to be true.