Super Tuesday could settle US Presidential races
The races for both the Democratic and Republican US presidential nominations could be settled today as four states vote in a major round of primary elections.
The main focus is on Ohio and Texas, but votes are also taking place in Rhode Island and Vermont.
Democratic front-runner Barack Obama has reportedly said that rival Hillary Clinton may have to quit if he wins in Texas and Ohio.
However, she vowed to stay the course.
Arizona Senator, John McCain could be confirmed as the Republican candidate.
He is expected to beat his rival Mike Huckabee in the four states, which could secure him enough of the 256 delegates at stake to secure his party\'s nomination.
The Associated Press reports that McCain currently has 1014 delegates, while Huckabee has 257.
A total of 1,091 delegates are needed to claim the nomination at the party\'s national convention in September.