Hillary Clinton focuses on Super Tuesday after key win in South Carolina

Hillary Clinton resoundingly reclaimed her position as the front-runner for the Democratic presidential nomination with a commanding victory over Bernie Sanders in South Carolina, giving her momentum heading into the key Super Tuesday contests.

For Mr Sanders, the roughly 50-point defeat crystallized his weakness with black voters, a crucial segment of the Democratic electorate, and if he loses black voters by similar margins in the southern states that vote on Tuesday, Mrs Clinton is likely to take a delegate lead difficult for him to overcome.