I'm not sure how many of have heard this story, or even know who Ralph Nader is, but on election day he apparently gave an interview to a radio station, he was later re-interviewed on FoxNews that night.
Here is a quote of what he said and a couple of stories about it.
To put it very simply, he [Barack Obama] is our first African American president, or he will be. And we wish him well. But his choice, basically, is whether he is going to be Uncle Sam for the people of this country or Uncle Tom for the giant corporations.
In the FoxNews interview, when he was asked straight up:
Fox News: "I just wonder if, in hindsight, you wish you'd used a phrase other than Uncle Tom"?
Nader: "Not -- at all. Do you know what the historic...."(Interrupted by Fox)
TRAIL BLAZERS Blog | The Dallas Morning News
Tim Goodman. The Bastard Machine : Ralph Nader calls Obama "Uncle Tom" and Fox News calls him out.
Personally I can't think of any reason why someone would use that phrase, it makes Nader look like the biggest racist in the world.
If you don't know what "Uncle Tom" is or means, Uncle Tom - Wikipedia, the free encyclopedia