Cherry picking (fallacy)

http://en.wikipedia.org/wiki/Cherry_picking_%28fallacy%29

This is probably the most common logical fallacy committed in the political realm:

Cherry picking, suppressing evidence, or the fallacy of incomplete evidence is the act of pointing to individual cases or data that seem to confirm a particular position, while ignoring a significant portion of related cases or data that may contradict that position. It is a kind of fallacy of selective attention, the most common example of which is the confirmation bias. Cherry picking may be committed unintentionally.[1]