The vast majority, around 70%, of the money poured into the 2016 presidential campaign cycle has come from non-campaign groups, i.e. super PACs and other groups. NBC News partner SMG Delta reviewed data on the about $150 million spent so far on advertising this cycle. The division along party lines is extremely stark. 83% of the money spent in the GOP race has come from non-campaign groups, compared to a surprisingly tiny 2% on the Democratic side.