A) Primary contest exit poll discrepancies that exceed the margin of error (in 11 of 11 such cases, the discrepancy favored Clinton). Media outlets have removed the unexpurgated poll numbers for 10 of these 11 cases. According to USAID, an organization that works to promote oversight of electoral processes, “exit polls are powerful analytical tools … A discrepancy between the votes reported by voters and official results may suggest that results have been manipulated, but it does not prove this to be the case.”7
B) A well-controlled California early voter exit poll (Capitol Weekly/Open CA) consisting of 21,000 data points matched early returns for down-ballot races, but was off by ~16% for Sanders v. Clinton, with the discrepancy in Clinton's favor.8 According to the L.A. County elections chief, Dean Logan, early/mail-in votes are reported first, strongly suggesting a miscount of mail-in ballots.
C) Our analyses show that in at least seventeen states, precinct size is the most robust linear predictor of Sanders' vote share, even when controlling for neighborhood/location. In other words, even when controlling for geographical location within the state, a statistical model shows that the larger a precinct, the lower Sanders' vote share. This cannot be explained away as an artefact of smaller precincts being more rural or less ethnically diverse: these results are replicated for New York City when considering only the Bronx (~10% white), for instance. This pattern was consistent for all five boroughs, with the exception of Manhattan, in which Sanders' vote share did not decrease linearly with precinct size. This pattern showed up, almost exclusively, in a variety of highly racially polarized cities where exit polling missed, but was not present, with rare exception, in similar states and counties where exit polling was accurate.
D) Multiple studies, including one published recently by graduate students at Stanford University and the University of Tillburg, show that across all primary states Clinton performs best in counties with voting machines that don't leave a papertrail, and that this difference is statistically significant.9
E) Chicago's Board of Elections has admitted to one of the authors of the report and to CounterPunch Magazine that citizens monitoring the audit were right about irregularities in the process and that audit “numbers didn't match” election day results.10 The citizens' monitoring group has insisted in public, sworn testimony that numbers were adjusted to force a match. A lawsuit has just been filed to demand an accurate audit of early vote totals in Chicago. Our irregular precinct size pattern showed up weakly in Chicago (Cook County) early balloting and strongly for the overall vote in Suburban Cook County
7 https://yali.state.gov/wp-content/uploads/sites/4/2016/01/Assessing-and-Verifying-Election-Results-SummaryDocument.pdf 8 http://capitolweekly.net/exit-poll-tight-race-absentee-voters-favor-hillary/ 9 https://drive.google.com/file/d/0B6mLpCEIGEYGYl9RZWFRcmpsZk0/view?pref=2&pli=1 10 http://www.counterpunch.org/2016/05/13/chicago-election-official-admits-numbers-didnt-match-hillary-clinton-vsbernie-sanders-election-fraud-allegations/