The Republican primary is competitive and the Democratic one is not. It makes sense that there would be early money being pumped in on the Republican side. In 2012, both sides basically raised the same amount of money by election day: <a href="http:&#x2F;&#x2F;elections.nytimes.com&#x2F;2012&#x2F;campaign-finance" rel="nofollow">http:&#x2F;&#x2F;elections.nytimes.com&#x2F;2012&#x2F;campaign-finance</a>