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Democratic presidential candidate Hillary Clinton continues to campaign ahead of the Montana and South Dakota primaries despite looking set to lose the party's nomination to rival Barack Obama. Despite badly trailing front-runner Barack Obama as he draws closer to clinching the Democratic party's presidential race, Hillary Clinton vowed on Monday (June 2) to continue her campaign to be the party's nominee in the November elections. Clinton's win in Puerto Rico, a territory where residents are not allowed to vote in the November election, gave her more fuel for her argument that she has won more popular votes in the five-month nominating fight and is the best Democrat to face Republican John McCain. She says she will continue at least until the votes are cast in the South Dakota and Montana primaries on Tuesday (June 3). Clinton's claims about the popular vote are disputed by the Obama campaign and do not include states won by Obama that used a caucus system where individual votes are not tallied. But popular votes do not determine the party's nominee, who is selected by delegates at the convention. Obama's lead in delegates is unassailable unless Clinton wins nearly all the remaining uncommitted superdelegates. Obama is fast approaching the magic number of 2,118 delegates needed to become the nominee, and the Illinois senator already has turned his attention to a general election fight with McCain. Campaigning on Monday (June 2) in South Dakota near the famous presidenti...