WASHINGTON — The Senate voted on Saturday to begin full debate on major health care legislation, propelling President Obama’s top domestic initiative over a crucial, preliminary hurdle in a formidable display of muscle-flexing by the Democratic majority.

Senate Majority Leader Harry Reid, right, and Senator Chris Dodd after the 60-39 passage of the cloture vote on health insurance reform legislation.

A blog from The New York Times that tracks the health care debate as it unfolds.

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