Insight into The Left's Introduction of "Social Darwinism" for 2012

Some pretty good intro on the left's recent strategy… and opinion piece provides some good resources you might want to go to for real historical facts!
Obama Launches meme, Jonah Goldberg shoots it down:

...the myth that Social Darwinism was a popular term in the late 19th and early 20th centuries was largely created by the liberal historian Richard Hofstadter, whose 1944 book Social Darwinism in American Thought didn't merely transform our understanding of the Gilded Age, it largely fabricated an alternative history of it.

(Via American Thinker Blog)