Hillary Clinton could lose her chance to face-off Donald Trump in the general election if she takes her eye off Bernie Sanders in the upcoming California primary on June 7. An influx of voter registration threatens to derail Ms Clinton’s lead over Bernie Sanders. A win for Sanders in the June 7 presidential primary contest in California would give him the credibility to flip Clinton’s super delegates to his side at the Democratic National Convention in July. The Independent reports: Mr Sanders will be looking to the state to boost his campaign with news of a further 1.5 million people registering to vote since January this year. The latest statistics from the Institute of California will be encouraging to Mr Sanders a big win in the 7 June California primary, where the candidates are currently virtually deadlocked,could hand him hundreds more delegates. Mr Sanders currently has 1,501 pledged delegates to Ms Clinton’s 1,769. The influx of additional registrants – a 218 per cent increase compared with the same period in 2012 – is likely to include large numbers of young voters and could make this scenario a reality. Recent open primaries have shown that the Vermont senator tends to underperform in pre-election surveys and over-perform on primary and caucus days, thanks to the participation of new registrants and [...]