Did Rick Bayless violate the White House rules against tweeting while cooking the state dinner for the Obamas and Mexican President Calderon? Lynn Sweet says he did, but Bayless took to, where else, Twitter to deny it and demand an apology.

The message cited by Sweet was posted in the 7am hour, according to the timestamp on Twitter; his next tweet was 17 hours later -- his response to Sweet's column. I asked Bayless where he was when he made the early morning tweet, and he replied that he was at his hotel. UPDATE: Sweet apologized. UPDATE 2: Time Out Chicago pulled together further tweets from Bayless explaining the situation.