Last week Zach Green of 140Elect, noticed some strange goings-on with Mitt Romney’s Twitter account (@MittRomney). Romney’s account, which had been averaging around 2,000 to 5,000 new followers a day, gained 141,000 followers in two days.

This observation prompted speculation – from Green, Slate,The Huffington Post, CNN, and many others – that the Romney Campaign was buying robot followers, or perhaps (conspiratorially) someone else was buying them to make Romney look bad.

via Statistical Probability That Mitt Romney’s New Twitter Followers Are Just Normal Users: 0% – Alexander Furnas and Devin Gaffney – The Atlantic.