Politicians often use “spin” to make something sound good. They can do this by giving a biased version of events, selectively presenting facts or simply lying. When they use “spin”, they try to describe the event in positive terms.It's all about attempting to influence the media (newspapers, radio stations, etc.) to make them look good.
For example, during the Iraq War (2003-2011), George Bush claimed that the invasion had made the world a safer place. He also justified the invasion by saying that the US was fighting “terrorists” there. However, his political opponents said that not only had the world become less stable, it was also making people become terrorists.