How does AP make sure the count is accurate?
As votes are entered into the AP system they must pass through computer programs that set off alerts in cases of discrepancies or apparent inconsistencies with previous voting history or other data. If a clerk enters numbers that show a significant disparity from expected patterns, for example, a popup box appears on his or her screen that summons a supervisor to intervene. In addition, experienced analysts examine post-entry alerts that call attention to developments like lead changes in races, inconsistent reporting like more votes for lieutenant governor than governor, and the like.