What does it mean? Twitter has some theories:
G-O and Bingo was his name-o! “@ChuckGrassley: N”—
Josiah Neeley (@jneeley78) October 04, 2012
"@ChuckGrassley: N" @ChuckGrassley Pretty racist letter. #debate—
GalvestonCounty Dems (@GalvCountyDems) October 04, 2012
…either Romney nor Obama have the answers, bring on Gary Johnson? RT @chuckgrassley: N—
Kevin W. Glass (@KevinWGlass) October 04, 2012
Profound “@ChuckGrassley: N”—
Shawn (@HawkeyeShawn) October 04, 2012
@ChuckGrassley today's #debate brought to you by the letter…—
Andres Jauregui (@dutchvowels) October 04, 2012
wow did @ChuckGrassley just tweet the N word??????????????—
(@anthonypants) October 04, 2012
This is perhaps the most substanive analysis of the debate to be tendered in the next 24 hours. RT @ChuckGrassley N—
John Anderson (@diymediadotnet) October 04, 2012
obama RT @ChuckGrassley: N—
Gavin Aronsen (@garonsen) October 04, 2012
Source: Twitchy » US Politics
http://thisistwitchy.files.wordpress.com/2012/04/grassley.jpg?w=140