I would agree. It seems Google Now has been pushing election updates for the last few months... The first few I received would only show Democrat results, though I never chose any party... Just got one today (or so), but it was more "balanced".

Let's not forget "Schmidt was an informal advisor and major donor to Barack Obama's 2008 presidential campaign, and began campaigning the week of October 19, 2008, on behalf of the candidate." [2]

I'm sure some people internal [to Google] know more about this, but from my understanding there was a push to use internal technologies (ads/etc) as a force for campaigning...

1 http://www.androidcentral.com/google-search-will-keep-you-da...

2 https://en.wikipedia.org/wiki/Eric_Schmidt