$1 million isn’t all that much. Iowa already has 35,000+ ads scheduled for $22+ million. Bush and Rubio and their PACs are spending around $5 million each.
www.desmoinesregister.com/story/news/elections/presidential/caucus/2015/10/10/political-ad-onslaught-has-only-just-begun/73615842/
(Copyright issue)
It’s not about what the others are spending. None of the other ones are doing negative advertising against Trump except for Club For Growth. The negative ads are working. The non-negative ads aren’t.