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Harry Reid delivers knockout punch on filibuster reform

The Nevada Democrat has threatened several times to take action against GOP obstruction. This time he finally did even though it's accompanied with big risks.

Harry Reid, Senate Democrats Pass "Nuclear Option" On Filibuster Rules
(L-R) Sen. Chuck Schumer (D-NY), Senate Majority Leader Harry Reid (D-NV), Sen. Patty Murray (D-WA) and Senate Majority Whip Richard Durbin (D-IL) talk to reporters at the U.S. Capitol Nov. 21, 2013 in Washington, DC.Getty Images