14 Memorable State of the Union moments

Published On: Feb 12 2013 11:28:24 AM CST   Updated On: Jan 20 2015 02:00:00 AM CST

As President Barack Obama prepares to deliver his State of the Union address Tuesday night, look back at some of the memorable moments in State of the Union addresses through the years.

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1974: Nixon is Defiant -- Amid the Watergate scandal, President Richard Nixon declares one year of the scandal to be "enough." His voice trembling, at one point he means to say, "we must replace the discredited welfare system," but instead says, "we must replace the discredited president."

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