2000 uncounted votes found in NY City from 2012 presidential election, 1600 in Brooklyn, 400 in Manhattan-NYDN.

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"In March, workers in the agency’s Manhattan office unearthed more than 400 ballots."...
 
7/3/13, "1,600 votes in Brooklyn from last year’s presidential election were only counted last week in yet another black eye for the NYC Board of Elections," NY Daily News, Celeste Katz

"Finding renews doubts the board will be able to handle mayoral election later this year."

"This is democracy?
 
Nearly six months after President Obama began his second term, the votes of some 1,600 Brooklyn residents who went to the polls were not counted until this week, the Daily News has learned.

Good government groups reacted with outrage — saying the bungling raises new questions about the ability of the Board of Elections to conduct an error-free mayoral election later this year....

The board first realized in April that it might have a problem with the November vote tally. An audit discovered a mismatch between the number of Brooklyn voters who signed in at the polls and the number of votes that were counted, officials said.

A board investigation narrowed the problem to two optical scanners at two poll sites — Brooklyn Borough Hall and the Carroll Gardens Public Library.

Voters cast ballots on those machines, but the data never got uploaded into the Board of Elections database and the votes were not counted.

Using the paper trail from the two scanners, officials counted the results by hand, a process only completed last week. Meeting on Tuesday — 238 days after Election Day — the Board of Elections added the totals to the official vote count.

The totals did not change the outcome of any race, from the presidential contest to those further down the ballot. But as history has shown, a tiny margin can have major ramifications in a local election.

In the 2005 Democratic primary for mayor, Fernando Ferrer staved off a runoff by getting just 720 votes more than the 40% he needed to win the race outright.

This is not the first time the Board of Elections has had to update results. 

In March, workers in the agency’s Manhattan office unearthed more than 400 ballots cast in November but which were never tabulated." via Free Republic

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Comment: These are just 2 examples in one city. Nothing will change. The two major political parties long ago worked out an arrangement whereby the GOP has agreed not to challenge votes despite putting on occasional charades to the contrary such as one they put on in 1993.

In 1982, GOP made a legal agreement not to monitor polls, not to attempt to ensure voter integrity or investigate likely voter fraud in areas with high ethnic votes. The only way this makes sense is if you accept that the GOP is dead, has long been dead, decided 30+ years ago they wanted the same things democrats wanted, yet knew they had to keep fooling people into thinking the US has a 2 party system. The pathetic GOP "agreement" goes through 2017:

1/14/13, "Supreme Court declines to hear Republican voting challenge," Reuters

"The Supreme Court on Monday refused to hear a legal challenge by the Republican National Committee to dissolve a 1982 decree designed to stop the improper suppression of voting by particular groups.

Without comment, the court decided not to review a March 2012 ruling by a federal appeals court in Philadelphia that extended the decree to November 2017, with modifications previously made by a federal district judge....

Under the decree, which later became national in scope, the RNC needs court approval to implement various poll-monitoring activities in minority precincts."...

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1993 GOP charade was for show, meant nothing:

2/4/13, "Going to Court in the Allen West Contest," J. Christian Adams, PJ Media 

"Section 8 requires states and counties to clean up their voter rolls to ensure dead and duplicate voters aren’t voting. Eric Holder isn’t so fond of enforcing Section 8 — his DOJ spiked at least eight investigations  into states with more registered voters than people alive. After public attention, Voting Section Chief Chris Herren fired off some letters to offending states, but nothing else beyond bluster has issued forth from Herren.

The Republicans who fought like crazy in Congress for Section 8 in 1993 then didn’t use it for almost two decades. Not a single private plaintiff brought a case to enforce the law, except by left-wing groups out to stop voter roll clean-ups....

The Left picks the ball up and runs, and the right quits playing the game."...

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Just one other example:

9/10/12, "Maryland Democrat quits congressional race amid vote fraud allegations," Washington Post, Ben Pershing

"A Maryland Democratic candidate quit her congressional race Monday after her own party told state officials that she had committed fraud by voting in both Maryland and Florida in recent elections."...