In what was clearly a typo, Pfeiffer accidentally tweeted the N-word. It was quickly deleted, but he knows better than anyone that a tweet lives on forever on the Twitterverse.
Hypervocal was quick to record the exchange:
He quickly tweeted an apology. Whoops.
Obviously a horrendous typo in my previous tweet. My apologies
— Dan Pfeiffer (@pfeiffer44) Oct. 8, 2013