Fun with the Sunlight Foundation API
Here's a chart of who uses the word "socialism" in Congress:
As you can see, kinda*, it's mostly Republicans who, I infer, imagined or at least said that Obama was a socialist in the 2008 election.
There are a lot of APIs to interesting data sets at that site. It might be fun to play around with them.
NOTE * The embed is a little sucky because I can't control the width. Presumably if I went ahead and got an API key, I could do better. Here's how the chart looks on the Sunlight Foundation site; the dates are shown, and yes, the spike really is in 2008.