January 01, 1970 | Sunlight Foundation | News
Since the fate of the Senate is at stake in November, we examined the campaign finance data around the most expensive contests using Sunlight's Real-Time Influence Explorer
tool. The spending here includes candidate committees, super PACs and 501(c)(4) groups. (And remember, dark money groups can run issue ads
to influence elections, and those are not disclosed with the FEC or accounted for in this post.) We’ll get a chance to see who is raising more money after April’s upcoming filing deadline, but, until then, here are the top 10 big-money Senate races so far in 2016 cycle.