An update: After her tweet on Friday, Iowa got trounced by Stanford, 45-16. On Sunday, Fiorina told CNN's Dana Bash the tweet was "tongue-in-cheek" and that people in Iowa "knew my heart was torn" between Stanford and Iowa.
“Oh, for heaven's sakes, Dana -- for heaven's sakes, can't a girl ever have a little bit of fun? That was a tongue-in-cheek tweet, which the people of Iowa understand, because I was asked over and over again in Iowa, having attended a Hawkeye tailgate, I was asked," Fiorina said. "They knew that my heart was torn. You would think, based on this reaction, that I had some -- said something really controversial, like, you know, 'ISIS is a J.V. team,' or this demonstration was a result of a video. Let's just say, if the biggest mistake I make is a tongue-in-cheek tweet about a Rose Bowl, the America people will sleep safely when I'm president of the United States. … I guess it was a slow news day for the media.”