New York Democratic primary, 2016

Campaign

The week before the primary, Sanders drew large crowds to campaign events in New York City: 28,000 heard Sanders speak in Brooklyn the weekend before the primary and 27,000 heard him speak in Manhattan the week before. Clinton drew "appreciative crowds of respectable size" but did not approach the attendance of Sanders events.

In early April, ahead of the primary, former President Bill Clinton visited western New York twice for campaign events, speaking at an event in Depew (attended by almost a thousand people) and addressing a room of activists and volunteers at Clinton's Buffalo campaign office.

In total, the Sanders campaign spent about $2 million more than the Clinton campaign on television ads in New York. In terms of campaign-expenditures per vote, Sanders' campaign spent about $9.03 per vote, while Clinton's campaign spent about $3.62 per vote.

April 2016 presidential debate

A ninth debate was held on April 14, 2016 in Brooklyn, New York at the Duggal Greenhouse in Brooklyn Navy Yard. The debate was aired on CNN and NY1. Wolf Blitzer of CNN served as moderator.

Election Day irregularities

The New York Times reported the day after the primary:

The Democratic vote was marred by major irregularities at polling places across Brooklyn. The city comptroller's office announced that the Board of Elections had confirmed that more than 125,000 Democratic voters in Brooklyn were dropped between November and this month, while about 63,000 were added — a net loss that was not explained. Mayor Bill de Blasio described 'the purging of entire buildings and blocks of voters,' while the comptroller, Scott Stringer, said his office would audit the Board of Elections.

Analysis

Clinton won a 16-point victory in her home state, after losing badly to Bernie Sanders two weeks prior in Wisconsin. Exit polls showed that Sanders won among voters age 18-29 in the Empire State, capturing 65% of this demographic, while Clinton won every other age group, performing better with older groups (53% of voters ages 30-44, 63% of voters aged 45-54, and 73% of voters aged 65 and over). Clinton tied men with Sanders 50-50, but won a 63-37 landslide among women (both married and unmarried). The candidates split the white vote 50-50, but Clinton won the African American vote 75-25 and the Hispanic/Latino vote 64-36. Clinton swept all income levels/socioeconomic statuses and educational attainment levels in her home state.

In terms of political ideology, Clinton won 62-38 among Democrats while Sanders won 72-28 among Independents, who were 14% of the electorate. Clinton won both liberals and moderate/conservative voters. She won among union households 58-42, and won both married and unmarried voters. In terms of religious affiliation, Clinton won Protestants 65-35, Catholics 62-38, and also won the Jewish vote. Sanders won agnostic/atheist voters 57-43. While Clinton won voters who said Wall Street does more to help the economy, Sanders won among those who said it hurts the economy.

Clinton performed very well on Long Island and in the five boroughs of New York City, particularly in Manhattan, Queens and the Bronx; she also won handily in Brooklyn and Staten Island. Clinton ran up big margins in New York City neighborhoods like Harlem, where the percentage of African American voters was highest. Sanders did better in rural, whiter upstate New York counties, with Clinton winning Buffalo, Syracuse, and Rochester while Sanders won in Albany. Sanders also performed well in the Hudson Valley, with a high concentration of liberals and college students.

After winning her home state convincingly, Clinton told supporters, "New Yorkers, you've always had my back and I've always tried to have yours [...] Today together we did it again and I am deeply, deeply grateful."