Voting and caucuses today throughout 10 states could lead to a much clearer picture of the Republican presidential nominee, or not.

Will Mitt Romney break through to be called the eventual nominee, or not?

So many questions, maybe some answers when Super Tuesday is over.

The key states to watch today are Ohio, Georgia, Tennessee and Oklahoma. Additionally, voter turnout must be watched as Republican presidential primary voters so far have been about 10 percent fewer than in 2008.