- Out of the approximately $150 million spent on advertisements in the 2016 presidential race, nearly 70 percent of it has come from outside groups. 83 percent of the Republican ad dollars have come from outside groups, versus 2 percent for Democrats. http://www.nbcnews.com/politics/first-read/nearly-70-ad-dollars-2016-race-come-outside-groups-n494876?cid=sm_twitter_feed_firstread 23 comments politics