But its the battleground state of Ohio that is being closely watched. Its partly symbolic, because this state is such a major battleground in the general election.
For Rick Santorum, it's also critical, because a loss in Ohio could finish his campaign. He had been surging ahead in the Ohio polls, only to watch his lead slip away, placing him in a last minute dead heat with Mitt Romney.
At a campaign rally Santorum saying he was outspent 12:1 in Ohio, and yet four to five polls average of show him dead even with Romney.
Romney continues trying to cast himself as the inevitable Republican nominee. For help, he turned to his wife Ann, who spoke about her battles with multiple sclerosis and breast cancer. In an effort to humanize her husband, who's seen by some as an out of touch multimillionaire.
Ann Romney said, "You know, I don't even consider myself wealthy, which is an
interesting thing. It can be here today, gone tomorrow."
But as the GOP candidates head into Super Tuesday with ten states and 437 delegates up for grabs, surveys say voters have developed largely unfavorable views of all remaining candidates.
It's a concern shared openly by Former First Lady Barbara Bush who thinks its the worst campaign she has seen in her lifetime. Going on to say she hates the fact that people think compromise is a dirty word.
For better or for worse, no candidate will come out of Super Tuesday with enough delegates to claim the nomination. But if Mitt Romney wins in this state, the Republican voices calling for either Rick Santorum or Newt Gingrich to drop out will grow louder.