Santorum tied Romney here in Michigan so the rules committee got together and decided it for Romney in a 5/2 vote. Former attorney general and Romney supporter, Mike Cox said it was a dirty way to play.
A tie would have given both 14 delegates but likely ended Romney. However several thousand people voted for Bachmann, Cain, and Ron Paul. I suspect most of those votes would have gone to Santorum if people had accepted the fact that their candidates had effectively dropped out. Gingrich was still in the race but he did stand down in Michigan to avoid screwing things up.
Tennessee voted for Sanctorum in 2012...
I remember... romney is a dirty politician like kennedy and clinton. He plays for keeps against his own... and lays down and surrenders against obama.