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Still, Edwards' impassioned outbursts also can backfire, especially when his own past words and deeds come back to haunt him.(via)
In Tuesday's AFL-CIO debate, Edwards' voice rose as he pledged his solidarity with union workers, citing the 200 times he walked picket lines in the last two years and being with rank-and-file at "crunch time."
"That's the question you have to ask yourself. Who will stand with you when it really matters?" he asked.
Rival Joe Biden testily suggested Edwards was a Johnny-come-lately, who only embraced labor's cause recently for the political expediency of the presidential race.
"The question is, did you walk when it cost? Did you walk when you were from a state that is not a labor state?" Biden asked.
To make its point, the Biden campaign distributed a list of news stories from 1998, when Edwards ran for the Senate, showing that he supported a North Carolina law that prevented workers from being forced to join a union - an anti-union position.