The big difference is in what kind of exit polling is being done . In particular , exit polls to check for fraud are a very different kind of beast than the kind of exit polls typically done in the US . US exit polls are done to 1 try to call elections early by looking at a few representative districts and 2 get demographic data . This means there aren ' t very many exit pollers and they ask voters to fill out long surveys which many will decline . In exit polls done for fraud , much more polling needs to be done and pollers generally ask for little more than for whom did you vote ? . This is much more expensive and doesn ' t give news mediapolitical organizations the data they want . If election results differ dramatically from the results of USstyle exit polls , it can still be a red flag , but it ' s not nearly enough to conclude anything .