Sen. Edward M. Kennedy, battling a brain tumor, walked through a wall of applause into the Senate on Wednesday and cast a stunningly unexpected vote on long-stalled Medicare legislation.

Returning to the Senate floor for the first time since his May brain surgery, Sen. Ted Kennedy (D-Ma) was greeted with a "lengthy standing ovation" by his colleagues, CNN reports.

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This video is from CNN's Situation Room, broadcast July 9, 2008.

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