FILE - In this April 17, 2016 file photo, Democratic presidential candidate Bernie Sanders speaks to supporters during a campaign rally in Brooklyn's Prospect Park, in the Brooklyn borough of New York. New York City's Board of Elections, long a target of complaints, came under fire as followers of Bernie Sanders, many from Sanders' hometown borough of Brooklyn, said they were unable to vote in the Democratic primary. The New York Board of Elections has suspended its chief clerk in Brooklyn without pay amid questions into whether she followed proper procedures in what was supposed to be a routine housecleaning of voter registration lists. (AP Photo/Mary Altaffer, File)
FILE - In this April 17, 2016 file photo, Democratic presidential candidate Bernie Sanders speaks to supporters during a campaign rally in Brooklyn's Prospect Park, in the Brooklyn borough of New York. New York City's Board of Elections, long a target of complaints, came under fire as followers of Bernie Sanders, many from Sanders' hometown borough of Brooklyn, said they were unable to vote in the Democratic primary. The New York Board of Elections has suspended its chief clerk in Brooklyn without pay amid questions into whether she followed proper procedures in what was supposed to be a routine housecleaning of voter registration lists. (AP Photo/Mary Altaffer, File) Credit: Mary Altaffer

Even before the polls closed in New York’s primary, the city’s election board dismissed as groundless hundreds of complaints, many from people in Bernie Sanders’s hometown borough of Brooklyn who said they were unable to vote.

It wasn’t until days later, after both the state attorney general and the city comptroller launched separate investigations, that New York City’s Board of Elections began to appear to take the accusations seriously.

It suspended its chief clerk in Brooklyn without pay amid questions into whether she followed proper procedures in what was supposed to be a routine housecleaning of voter registration lists.

Between November and April, about 126,000 Brooklyn voters either were removed from voting lists or had their statuses changed to “inactive” – ostensibly because they had moved, their mail was returned as undeliverable or they failed to vote in two federal elections and didn’t respond to letters.

So far, the board has yet to fully explain what might have gone wrong with that process.

To New Yorkers, news that people are unhappy with the Board of Election’s performance was hardly surprising. It has been a punching bag for years, castigated for errors such as polls opening late, broken voting machines and poll workers providing wrong information. A city probe three years ago found widespread abuses, including poll workers who peeked at voters’ choices while they cast ballots and others who told voters to “vote down the line.”

“The people of New York City have lost confidence that the Board of Elections can effectively administer elections, and we intend to find out why the BOE is so consistently disorganized, chaotic and inefficient,” City Comptroller Scott Stringer said.

Attorney General Eric Schneiderman said his office had received more than 1,000 Election Day complaints about voting problems.

Initially, the city Board of Elections executive director, Michael Ryan, described the voter purge as routine.

And just hours before Thursday’s announcement of the suspension the Brooklyn elections chief, Ryan suggested that the complaints were mostly coming from Sanders supporters who misunderstood the state’s rules.