Clinton, Sanders campaign in New York City

Hillary Clinton and Bernie Sanders are campaigning throughout New York City today ahead of the state's primary next week.

Sanders predicted victory as he appeared with members of a transit workers union, before joining a picket line with communications workers striking against Verizon. He picked up the support of the transit union, providing him with a small army of workers who could pass out leaflets in subways in the days ahead.

Clinton today is again reaching out to the city's black community with a speech to the organization led by the Rev. Al Sharpton.

New York City offers by far the largest bloc of votes in next Tuesday's primary, and campaign officials estimate it could account for about 70 percent of the vote. In 2008, when Clinton dueled Barack Obama in the state's primary, more than half of the vote came from the city's five boroughs.

Polls have shown Clinton with a lead against Sanders, putting pressure on Sanders to overcome Clinton's edge.

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